{"id":522,"date":"2026-07-06T14:02:41","date_gmt":"2026-07-06T21:02:41","guid":{"rendered":"https:\/\/www.ultalabtests.com\/blog\/?p=522"},"modified":"2026-07-13T18:04:38","modified_gmt":"2026-07-14T01:04:38","slug":"chronic-kidney-disease-stages-causes-symptoms-tests","status":"publish","type":"post","link":"https:\/\/www.ultalabtests.com\/blog\/kidney\/chronic-kidney-disease-stages-causes-symptoms-tests\/","title":{"rendered":"Chronic Kidney Disease: Understand CKD Stages, Causes, Symptoms, and Kidney Tests"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\" id=\"h-\">Chronic kidney disease, commonly called <strong>CKD<\/strong>, occurs when the kidneys have a persistent structural or functional abnormality that affects health. CKD is not defined by one isolated blood test. Under current kidney guidelines, evidence of kidney damage or reduced kidney function must generally be present for at least three months to establish chronicity.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The condition can progress quietly. Early CKD often causes no noticeable symptoms, which means blood and urine testing may reveal changes long before a person feels unwell. The two central kidney measurements are <strong>estimated glomerular filtration rate<\/strong>, or eGFR, and <strong>urine albumin-to-creatinine ratio<\/strong>, or uACR.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">CKD is common and frequently unrecognized. The CDC\u2019s March 2026 estimates indicate that approximately 14% of U.S. adults have CKD and that about 87% of affected adults do not know they have it.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.ultalabtests.com\">Ulta Lab Tests<\/a> provides direct online access to many kidney-related blood and urine tests where available. Lab testing can provide valuable information, but results do not replace a medical examination, diagnosis, or individualized guidance from a qualified healthcare provider.<\/p>\n\n\n\n<h2 id=\"h-key-takeaways\" class=\"wp-block-heading\">Key Takeaways<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>CKD means a kidney structure or function abnormality has persisted for at least three months and has health implications.<\/li>\n\n\n\n<li>Early CKD often has no symptoms, so testing may be the only way to identify a possible problem.<\/li>\n\n\n\n<li>Diabetes and high blood pressure are the two most common causes of CKD in adults.<\/li>\n\n\n\n<li>CKD is classified by its cause, eGFR category, and urine albumin category\u2014not by eGFR alone.<\/li>\n\n\n\n<li>The most important initial tests are usually a <a href=\"https:\/\/www.ultalabtests.com\/test\/creatinine\">Creatinine Test<\/a> with eGFR and an <a href=\"https:\/\/www.ultalabtests.com\/test\/albumin-random-urine-test-with-creatinine\">Albumin Random Urine Test with Creatinine<\/a>.<\/li>\n\n\n\n<li>A single low eGFR or elevated uACR does not always establish CKD; repeat testing is often needed.<\/li>\n\n\n\n<li>Kidney results should be interpreted with medications, hydration, muscle mass, recent illness, urine findings, and trends over time.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"640\" height=\"640\" src=\"https:\/\/i0.wp.com\/www.ultalabtests.com\/blog\/wp-content\/uploads\/2024\/11\/Chronic-Kidney-Disease-CKD-Stages-Causes-Symptoms-and-Tests-Medium.jpeg?resize=640%2C640&#038;quality=100&#038;ssl=1\" alt=\"Chronic kidney disease infographic showing kidneys, CKD stages 1 through 5, common causes, early symptoms, and eGFR, creatinine, uACR, and urinalysis tests.\" class=\"wp-image-2756\" srcset=\"https:\/\/i0.wp.com\/www.ultalabtests.com\/blog\/wp-content\/uploads\/2024\/11\/Chronic-Kidney-Disease-CKD-Stages-Causes-Symptoms-and-Tests-Medium.jpeg?w=640&amp;quality=100&amp;ssl=1 640w, https:\/\/i0.wp.com\/www.ultalabtests.com\/blog\/wp-content\/uploads\/2024\/11\/Chronic-Kidney-Disease-CKD-Stages-Causes-Symptoms-and-Tests-Medium.jpeg?resize=300%2C300&amp;quality=100&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.ultalabtests.com\/blog\/wp-content\/uploads\/2024\/11\/Chronic-Kidney-Disease-CKD-Stages-Causes-Symptoms-and-Tests-Medium.jpeg?resize=150%2C150&amp;quality=100&amp;ssl=1 150w, https:\/\/i0.wp.com\/www.ultalabtests.com\/blog\/wp-content\/uploads\/2024\/11\/Chronic-Kidney-Disease-CKD-Stages-Causes-Symptoms-and-Tests-Medium.jpeg?resize=600%2C600&amp;quality=100&amp;ssl=1 600w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><figcaption class=\"wp-element-caption\">Understand chronic kidney disease stages 1\u20135, major risk factors, early symptoms, and the kidney function tests used to evaluate filtration and kidney damage.<\/figcaption><\/figure>\n\n\n\n<h2 id=\"h-what-is-chronic-kidney-disease\" class=\"wp-block-heading\">What Is Chronic Kidney Disease?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Your kidneys continuously filter blood, remove wastes and excess water, and create urine. They also help regulate:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Blood pressure<\/li>\n\n\n\n<li>Sodium and fluid balance<\/li>\n\n\n\n<li>Potassium and other electrolytes<\/li>\n\n\n\n<li>Acid-base balance<\/li>\n\n\n\n<li>Red blood cell production<\/li>\n\n\n\n<li>Calcium, phosphorus, and bone metabolism<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Chronic kidney disease develops when kidney damage or reduced filtration persists over time. Kidney Disease: Improving Global Outcomes, or KDIGO, defines CKD as an abnormality of kidney structure or function lasting at least three months and having implications for health. CKD is classified using the <strong>CGA system<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>C:<\/strong> Cause of kidney disease<\/li>\n\n\n\n<li><strong>G:<\/strong> Glomerular filtration rate category<\/li>\n\n\n\n<li><strong>A:<\/strong> Albuminuria category<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">This approach provides more information than referring to \u201cstage 1 through stage 5\u201d alone. A person\u2019s eGFR and urine albumin level work together to estimate the likelihood of progression and other health complications.<\/p>\n\n\n\n<h3 id=\"h-can-you-have-ckd-with-a-normal-egfr\" class=\"wp-block-heading\">Can You Have CKD With a Normal eGFR?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Yes. Someone can have an eGFR of 60 or higher and still meet CKD criteria if there is persistent evidence of kidney damage, such as:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Albumin or excess protein in the urine<\/li>\n\n\n\n<li>Abnormal urine sediment<\/li>\n\n\n\n<li>Structural kidney abnormalities on imaging<\/li>\n\n\n\n<li>Certain electrolyte abnormalities caused by tubular disease<\/li>\n\n\n\n<li>Abnormal kidney tissue findings<\/li>\n\n\n\n<li>A history of kidney transplantation<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">An eGFR in the G1 or G2 range does not by itself establish CKD when no other marker of kidney damage is present.<\/p>\n\n\n\n<h2 id=\"h-why-chronic-kidney-disease-matters\" class=\"wp-block-heading\">Why Chronic Kidney Disease Matters<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Healthy kidneys regulate far more than waste removal. As kidney function declines, disturbances may develop in fluid balance, blood pressure, potassium, bicarbonate, red blood cell production, and bone-mineral metabolism.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">CKD is also closely connected with cardiovascular health. People with CKD may have an increased risk of high blood pressure, heart disease, stroke, and other complications. Risks generally increase as eGFR falls and albuminuria rises.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Early awareness matters because it allows patients and healthcare providers to:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Confirm whether an abnormal result is persistent<\/li>\n\n\n\n<li>Investigate possible causes<\/li>\n\n\n\n<li>Review medications and supplements<\/li>\n\n\n\n<li>Monitor blood pressure and blood sugar<\/li>\n\n\n\n<li>Determine whether additional urine tests or imaging are appropriate<\/li>\n\n\n\n<li>Follow eGFR and urine albumin trends<\/li>\n\n\n\n<li>Identify complications that may require medical attention<\/li>\n<\/ul>\n\n\n\n<h2 id=\"h-what-are-the-five-stages-of-ckd\" class=\"wp-block-heading\">What Are the Five Stages of CKD?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The \u201cstage\u201d of chronic kidney disease is based largely on eGFR, an estimate of how much blood the kidneys filter each minute. Results are adjusted to a standardized body-surface area and reported as mL\/min\/1.73 m<sup>2<\/sup>.<\/p>\n\n\n\n<h3 id=\"h-ckd-egfr-categories\" class=\"wp-block-heading\">CKD eGFR Categories<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-light-background-color has-background has-fixed-layout\"><thead><tr><th>GFR Category<\/th><th>eGFR, mL\/min\/1.73 m<sup>2<\/sup><\/th><th>General Description<\/th><th>Important Context<\/th><\/tr><\/thead><tbody><tr><td><strong>G1<\/strong><\/td><td>90 or higher<\/td><td>Normal or high filtration<\/td><td>CKD requires another persistent marker of kidney damage.<\/td><\/tr><tr><td><strong>G2<\/strong><\/td><td>60\u201389<\/td><td>Mildly decreased<\/td><td>CKD requires another persistent marker of kidney damage.<\/td><\/tr><tr><td><strong>G3a<\/strong><\/td><td>45\u201359<\/td><td>Mildly to moderately decreased<\/td><td>Persistent results may indicate stage 3a CKD.<\/td><\/tr><tr><td><strong>G3b<\/strong><\/td><td>30\u201344<\/td><td>Moderately to severely decreased<\/td><td>Complication and progression risks are generally higher.<\/td><\/tr><tr><td><strong>G4<\/strong><\/td><td>15\u201329<\/td><td>Severely decreased<\/td><td>Requires close medical and kidney-specialist evaluation.<\/td><\/tr><tr><td><strong>G5<\/strong><\/td><td>Below 15<\/td><td>Kidney failure<\/td><td>Requires prompt specialist management and planning based on the full clinical picture.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">These categories are based on KDIGO guidance. A low eGFR should generally be repeated and evaluated in context to distinguish chronic kidney disease from an acute or temporary change.<\/p>\n\n\n\n<h3 id=\"h-albuminuria-categories\" class=\"wp-block-heading\">Albuminuria Categories<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Albumin is a protein that is normally retained in the bloodstream. Damaged kidney filters may allow albumin to leak into the urine.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-light-background-color has-background has-fixed-layout\"><thead><tr><th>Albuminuria Category<\/th><th>uACR Result<\/th><th>Description<\/th><\/tr><\/thead><tbody><tr><td><strong>A1<\/strong><\/td><td>Less than 30 mg\/g<\/td><td>Normal to mildly increased<\/td><\/tr><tr><td><strong>A2<\/strong><\/td><td>30\u2013300 mg\/g<\/td><td>Moderately increased<\/td><\/tr><tr><td><strong>A3<\/strong><\/td><td>More than 300 mg\/g<\/td><td>Severely increased<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">A higher uACR can indicate greater kidney damage and higher health risk, even when eGFR remains above 60. The combination of eGFR and uACR gives a more complete picture than either result alone.<\/p>\n\n\n\n<h2 id=\"h-what-causes-chronic-kidney-disease\" class=\"wp-block-heading\">What Causes Chronic Kidney Disease?<\/h2>\n\n\n\n<h3 id=\"h-diabetes\" class=\"wp-block-heading\">Diabetes<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Diabetes is a leading cause of CKD. Over time, elevated blood glucose can damage the kidney\u2019s filtering structures, allowing albumin to leak into the urine and gradually reducing filtration.<\/p>\n\n\n\n<h3 id=\"h-high-blood-pressure\" class=\"wp-block-heading\">High Blood Pressure<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">High blood pressure can damage the small blood vessels and filtering structures in the kidneys. Kidney damage can also contribute to fluid retention and further increases in blood pressure, creating a harmful cycle.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The National Institute of Diabetes and Digestive and Kidney Diseases identifies diabetes and high blood pressure as the two most common causes of CKD in adults.<\/p>\n\n\n\n<h3 id=\"h-other-causes-and-contributing-conditions\" class=\"wp-block-heading\">Other Causes and Contributing Conditions<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">CKD may also be associated with:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Previous acute kidney injury<\/li>\n\n\n\n<li>Glomerular diseases such as IgA nephropathy<\/li>\n\n\n\n<li>Autoimmune conditions such as lupus<\/li>\n\n\n\n<li>Polycystic kidney disease and other inherited disorders<\/li>\n\n\n\n<li>Recurrent or complicated kidney stones<\/li>\n\n\n\n<li>Urinary tract obstruction<\/li>\n\n\n\n<li>Kidney or systemic infections<\/li>\n\n\n\n<li>Heart failure or advanced cardiovascular disease<\/li>\n\n\n\n<li>Certain cancers, including multiple myeloma<\/li>\n\n\n\n<li>Sickle cell disease<\/li>\n\n\n\n<li>Severe obesity and metabolic disease<\/li>\n\n\n\n<li>Reduced blood flow through the renal arteries<\/li>\n\n\n\n<li>Medications or substances that can injure the kidneys<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Determining the underlying cause may require medical history, physical examination, laboratory testing, imaging, and occasionally specialized testing or kidney biopsy. Routine blood work alone cannot identify every cause.<\/p>\n\n\n\n<h2 id=\"h-who-should-consider-kidney-testing\" class=\"wp-block-heading\">Who Should Consider Kidney Testing?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Testing may be particularly important for people with:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Diabetes or prediabetes<\/li>\n\n\n\n<li>High blood pressure<\/li>\n\n\n\n<li>Heart disease or heart failure<\/li>\n\n\n\n<li>A family history of kidney failure or inherited kidney disease<\/li>\n\n\n\n<li>A previous episode of acute kidney injury<\/li>\n\n\n\n<li>Recurrent kidney stones or urinary obstruction<\/li>\n\n\n\n<li>Lupus or another systemic autoimmune condition<\/li>\n\n\n\n<li>Long-term exposure to potentially kidney-affecting medications<\/li>\n\n\n\n<li>Unexplained albumin or blood in the urine<\/li>\n\n\n\n<li>Abnormal creatinine or eGFR on previous testing<\/li>\n\n\n\n<li>Older age combined with other kidney risk factors<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">NIDDK recommends considering testing in people with diabetes, high blood pressure, heart disease, or a family history of kidney failure. The benefit of broad CKD screening in people without risk factors is less clear.<\/p>\n\n\n\n<h2 id=\"h-chronic-kidney-disease-symptoms-and-warning-signs\" class=\"wp-block-heading\">Chronic Kidney Disease Symptoms and Warning Signs<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Early CKD usually does not cause obvious symptoms. Symptoms become more likely as kidney function declines or complications develop.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-light-background-color has-background has-fixed-layout\"><thead><tr><th>Symptom or Risk Factor<\/th><th>What It May Suggest<\/th><th>Related Lab Tests<\/th><\/tr><\/thead><tbody><tr><td>No symptoms but diabetes or high blood pressure<\/td><td>Increased risk of silent kidney damage<\/td><td><a href=\"https:\/\/www.ultalabtests.com\/test\/creatinine\">Creatinine Test<\/a>, <a href=\"https:\/\/www.ultalabtests.com\/test\/albumin-random-urine-test-with-creatinine\">Albumin Random Urine Test with Creatinine<\/a>, and <a href=\"https:\/\/www.ultalabtests.com\/test\/urinalysis-ua-complete\">Urinalysis Complete Test<\/a><\/td><\/tr><tr><td>Foamy or persistently bubbly urine<\/td><td>Albumin or other protein in the urine<\/td><td><a href=\"https:\/\/www.ultalabtests.com\/test\/albumin-random-urine-test-with-creatinine\">Albumin Random Urine Test with Creatinine<\/a>, <a href=\"https:\/\/www.ultalabtests.com\/test\/urinalysis-ua-complete\">Urinalysis Complete Test<\/a>, and <a href=\"https:\/\/www.ultalabtests.com\/test\/protein-total-random-urine-with-creatini\">Protein Total Random Urine Test with Creatinine<\/a><\/td><\/tr><tr><td>Swelling in the feet, ankles, hands, or face<\/td><td>Fluid retention or significant urinary protein loss<\/td><td><a href=\"https:\/\/www.ultalabtests.com\/test\/renal-function-panel\">Renal Function Panel Test<\/a>, <a href=\"https:\/\/www.ultalabtests.com\/test\/albumin-random-urine-test-with-creatinine\">Albumin Random Urine Test with Creatinine<\/a>, and <a href=\"https:\/\/www.ultalabtests.com\/test\/urinalysis-ua-complete\">Urinalysis Complete Test<\/a><\/td><\/tr><tr><td>Unexplained fatigue or weakness<\/td><td>Anemia, electrolyte imbalance, illness, or reduced kidney function<\/td><td><a href=\"https:\/\/www.ultalabtests.com\/test\/complete-blood-count-with-differential-and-platelets-cbc-test\">Complete Blood Count with Differential and Platelets<\/a> and <a href=\"https:\/\/www.ultalabtests.com\/test\/renal-function-panel\">Renal Function Panel Test<\/a><\/td><\/tr><tr><td>Changes in urination<\/td><td>Urinary tract, bladder, prostate, fluid, or kidney issues<\/td><td><a href=\"https:\/\/www.ultalabtests.com\/test\/urinalysis-ua-complete\">Urinalysis Complete Test<\/a>, <a href=\"https:\/\/www.ultalabtests.com\/test\/renal-function-panel\">Renal Function Panel Test<\/a>, and <a href=\"https:\/\/www.ultalabtests.com\/test\/albumin-random-urine-test-with-creatinine\">Albumin Random Urine Test with Creatinine<\/a><\/td><\/tr><tr><td>Blood in the urine<\/td><td>Infection, stone, urinary tract disease, or kidney-filter inflammation<\/td><td><a href=\"https:\/\/www.ultalabtests.com\/test\/urinalysis-ua-complete\">Urinalysis Complete Test<\/a> and prompt healthcare-provider evaluation<\/td><\/tr><tr><td>Itching, nausea, poor appetite, or altered taste<\/td><td>May occur in advanced CKD but has many other causes<\/td><td><a href=\"https:\/\/www.ultalabtests.com\/test\/renal-function-panel\">Renal Function Panel Test<\/a>, <a href=\"https:\/\/www.ultalabtests.com\/test\/complete-blood-count-with-differential-and-platelets-cbc-test\">Complete Blood Count with Differential and Platelets<\/a>, and provider-directed testing<\/td><\/tr><tr><td>Muscle cramps or weakness<\/td><td>Possible electrolyte or mineral imbalance<\/td><td><a href=\"https:\/\/www.ultalabtests.com\/test\/renal-function-panel\">Renal Function Panel Test<\/a>, <a href=\"https:\/\/www.ultalabtests.com\/test\/calcium-test\/%23\/VUxUQUEwODA%3D\">Calcium Test<\/a>, and <a href=\"https:\/\/www.ultalabtests.com\/test\/phosphate-as-phosphorus\">Phosphate (as Phosphorus) Test<\/a><\/td><\/tr><tr><td>Difficulty concentrating or sleep problems<\/td><td>May occur with advanced disease, anemia, or other conditions<\/td><td><a href=\"https:\/\/www.ultalabtests.com\/test\/complete-blood-count-with-differential-and-platelets-cbc-test\">Complete Blood Count with Differential and Platelets<\/a>, <a href=\"https:\/\/www.ultalabtests.com\/test\/renal-function-panel\">Renal Function Panel Test<\/a>, and medical evaluation<\/td><\/tr><tr><td>Chest pain or shortness of breath<\/td><td>Possible cardiovascular or fluid-related emergency<\/td><td>Seek urgent medical care rather than relying on outpatient testing.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Advanced CKD symptoms may include fatigue, sleep problems, difficulty concentrating, appetite loss, nausea, changes in urination, foamy urine, itching, muscle cramps, shortness of breath, chest pain, and worsening swelling. These symptoms are not specific to CKD and should not be used for self-diagnosis.<\/p>\n\n\n\n<h3 id=\"h-seek-urgent-medical-care-for-concerning-symptoms\" class=\"wp-block-heading\">Seek Urgent Medical Care for Concerning Symptoms<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Obtain prompt or emergency medical care for chest pain, severe shortness of breath, confusion, fainting, inability to urinate, rapidly worsening swelling, severe weakness, persistent vomiting, or visible blood in the urine. Do not delay urgent evaluation while waiting for routine laboratory testing.<\/p>\n\n\n\n<h2 id=\"h-the-role-of-lab-testing-in-ckd\" class=\"wp-block-heading\">The Role of Lab Testing in CKD<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Kidney testing can answer several different questions.<\/p>\n\n\n\n<h3 id=\"h-what-laboratory-testing-may-reveal\" class=\"wp-block-heading\">What Laboratory Testing May Reveal<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>How efficiently the kidneys are filtering blood<\/li>\n\n\n\n<li>Whether albumin or other protein is leaking into urine<\/li>\n\n\n\n<li>Whether blood or abnormal cells are present in urine<\/li>\n\n\n\n<li>Potassium, sodium, bicarbonate, calcium, and phosphorus balance<\/li>\n\n\n\n<li>Possible anemia<\/li>\n\n\n\n<li>Diabetes and cardiovascular risk factors<\/li>\n\n\n\n<li>Changes in kidney function over time<\/li>\n<\/ul>\n\n\n\n<h3 id=\"h-what-laboratory-testing-cannot-reveal-by-itself\" class=\"wp-block-heading\">What Laboratory Testing Cannot Reveal by Itself<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Confirm that an abnormality has lasted three months<\/li>\n\n\n\n<li>Identify every cause of kidney disease<\/li>\n\n\n\n<li>Show the size or physical structure of the kidneys<\/li>\n\n\n\n<li>Detect every urinary blockage<\/li>\n\n\n\n<li>Replace ultrasound, CT, MRI, or other imaging when indicated<\/li>\n\n\n\n<li>Determine whether a medication should be started, stopped, or changed<\/li>\n\n\n\n<li>Predict an individual outcome with certainty<\/li>\n<\/ul>\n\n\n\n<h3 id=\"h-why-repeat-testing-matters\" class=\"wp-block-heading\">Why Repeat Testing Matters<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A temporary illness, dehydration, medication effect, intense exercise, urinary infection, or acute kidney injury may alter kidney-related results. KDIGO recommends repeating an unexpectedly low eGFR, elevated uACR, or blood in the urine to help confirm whether a chronic abnormality is present.<\/p>\n\n\n\n<h2 id=\"h-related-kidney-lab-tests-and-biomarkers\" class=\"wp-block-heading\">Related Kidney Lab Tests and Biomarkers<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-light-background-color has-background has-fixed-layout\"><thead><tr><th>Lab Test<\/th><th>What It Measures<\/th><th>Why It May Matter<\/th><th>Important Limitations<\/th><\/tr><\/thead><tbody><tr><td><a href=\"https:\/\/www.ultalabtests.com\/test\/creatinine\"><strong>Creatinine Test<\/strong><\/a><\/td><td>Measures creatinine, a waste product influenced partly by muscle metabolism. The result may be used to calculate eGFR.<\/td><td>A rising creatinine or falling eGFR may indicate reduced kidney filtration.<\/td><td>Results can be influenced by muscle mass, recent meat intake, exercise, certain medications, acute illness, and hydration.<\/td><\/tr><tr><td><a href=\"https:\/\/www.ultalabtests.com\/test\/albumin-random-urine-test-with-creatinine\"><strong>Albumin Random Urine Test with Creatinine<\/strong><\/a><\/td><td>Compares urine albumin with urine creatinine in a spot urine sample and reports the uACR.<\/td><td>May detect albumin leakage before eGFR declines.<\/td><td>Exercise, infection, fever, marked hyperglycemia, severe hypertension, heart failure, urinary bleeding, and menstrual contamination may temporarily affect the result.<\/td><\/tr><tr><td><a href=\"https:\/\/www.ultalabtests.com\/test\/cystatin-c-with-egfr\"><strong>Cystatin C Test with eGFR<\/strong><\/a><\/td><td>Measures cystatin C, a blood protein filtered by the kidneys, and calculates an additional eGFR.<\/td><td>May help when creatinine-based eGFR is uncertain because of unusually high or low muscle mass, frailty, amputation, spinal cord injury, eating disorders, or intensive bodybuilding.<\/td><td>Cystatin C can be affected by thyroid disease, inflammation, smoking, corticosteroid exposure, higher adiposity, and certain cancers.<\/td><\/tr><tr><td><a href=\"https:\/\/www.ultalabtests.com\/test\/estimated-glomerular-filtration-rate-egfr-with-creatinine-and-cystatin-c\"><strong>Estimated Glomerular Filtration Rate with Creatinine and Cystatin C<\/strong><\/a><\/td><td>Uses both creatinine and cystatin C to calculate kidney filtration.<\/td><td>The combined estimate may be more accurate than using either filtration marker alone.<\/td><td>It remains an estimate and may be less reliable when non-kidney factors strongly affect both markers.<\/td><\/tr><tr><td><a href=\"https:\/\/www.ultalabtests.com\/test\/renal-function-panel\"><strong>Renal Function Panel Test<\/strong><\/a><\/td><td>Commonly includes creatinine, eGFR, BUN, sodium, potassium, chloride, carbon dioxide, calcium, phosphorus, glucose, and albumin.<\/td><td>Provides information about filtration, electrolytes, acid-base balance, and minerals that may be affected by kidney disease.<\/td><td>Abnormal values are not specific to CKD and may be influenced by diet, hydration, medications, liver disease, endocrine conditions, and other illnesses.<\/td><\/tr><tr><td><a href=\"https:\/\/www.ultalabtests.com\/test\/urinalysis-ua-complete\"><strong>Urinalysis Complete Test<\/strong><\/a><\/td><td>Evaluates urine appearance, concentration, pH, protein, blood, glucose, white blood cells, crystals, cells, and casts.<\/td><td>Protein, blood, or abnormal sediment may provide clues about kidney or urinary tract conditions.<\/td><td>Abnormal findings can result from infection, exercise, stones, contamination, menstruation, or non-kidney conditions.<\/td><\/tr><tr><td><a href=\"https:\/\/www.ultalabtests.com\/test\/protein-total-random-urine-with-creatini\"><strong>Protein Total Random Urine Test with Creatinine<\/strong><\/a><\/td><td>Estimates total protein loss in a spot urine sample.<\/td><td>May be useful when proteins other than albumin are suspected or when total urine protein needs to be quantified.<\/td><td>For common CKD risk assessment, uACR is usually preferred because it is more sensitive to albumin leakage.<\/td><\/tr><tr><td><a href=\"https:\/\/www.ultalabtests.com\/test\/complete-blood-count-with-differential-and-platelets-cbc-test\"><strong>Complete Blood Count with Differential and Platelets<\/strong><\/a><\/td><td>Measures red blood cells, hemoglobin, hematocrit, white blood cells, and platelets.<\/td><td>Reduced kidney hormone production may contribute to anemia as CKD progresses.<\/td><td>Low hemoglobin has many possible causes, including iron deficiency, blood loss, inflammation, vitamin deficiency, and bone marrow disorders.<\/td><\/tr><tr><td><a href=\"https:\/\/www.ultalabtests.com\/test\/hemoglobin-a1c-hgba1c\"><strong>Hemoglobin A1c Test<\/strong><\/a> and <a href=\"https:\/\/www.ultalabtests.com\/test\/hemoglobin-a1c-and-glucose-panel\"><strong>Hemoglobin A1c and Glucose Panel<\/strong><\/a><\/td><td>A1c estimates average glucose exposure over approximately two to three months, while glucose measures blood sugar at the time of collection.<\/td><td>Diabetes is a leading cause of CKD, making glucose assessment important for many patients.<\/td><td>Anemia, altered red blood cell survival, transfusion, and advanced kidney disease may affect A1c interpretation.<\/td><\/tr><tr><td><a href=\"https:\/\/www.ultalabtests.com\/test\/calcium-test\/%23\/VUxUQUEwODA%3D\"><strong>Calcium Test<\/strong><\/a>, <a href=\"https:\/\/www.ultalabtests.com\/test\/phosphate-as-phosphorus\"><strong>Phosphate (as Phosphorus) Test<\/strong><\/a>, <a href=\"https:\/\/www.ultalabtests.com\/test\/pth-intact-test\"><strong>PTH Intact Test<\/strong><\/a>, and <a href=\"https:\/\/www.ultalabtests.com\/test\/vitamin-d-25-hydroxy-total-test\"><strong>Vitamin D 25-Hydroxy Total Test<\/strong><\/a><\/td><td>Evaluate mineral and hormone pathways involved in bone health.<\/td><td>More advanced CKD may disturb phosphorus excretion, vitamin D metabolism, calcium balance, and parathyroid hormone regulation.<\/td><td>These tests are usually most useful when selected according to CKD stage, prior results, symptoms, and provider guidance.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 id=\"h-a-patient-centered-kidney-testing-approach\" class=\"wp-block-heading\">A Patient-Centered Kidney Testing Approach<\/h2>\n\n\n\n<h3 id=\"h-essential-testing\" class=\"wp-block-heading\">Essential Testing<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">For many adults at increased risk, a foundational assessment may include:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.ultalabtests.com\/test\/creatinine\"><strong>Creatinine Test<\/strong><\/a> with eGFR<\/li>\n\n\n\n<li><a href=\"https:\/\/www.ultalabtests.com\/test\/albumin-random-urine-test-with-creatinine\"><strong>Albumin Random Urine Test with Creatinine<\/strong><\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.ultalabtests.com\/test\/urinalysis-ua-complete\"><strong>Urinalysis Complete Test<\/strong><\/a><\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">The <a href=\"https:\/\/www.ultalabtests.com\/test\/kidney-profile\"><strong>Kidney Profile<\/strong><\/a> combines creatinine with eGFR and urine albumin with creatinine in one kidney-focused option. Testing both filtration and urine albumin is important because one may be abnormal while the other remains within range.<\/p>\n\n\n\n<h3 id=\"h-advanced-testing\" class=\"wp-block-heading\">Advanced Testing<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Additional testing may be considered when creatinine-based eGFR appears inconsistent with a person\u2019s health or body composition, a prior result was borderline, albumin or protein is present in the urine, medication dosing requires a more reliable filtration estimate, or kidney function has changed over time.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.ultalabtests.com\/test\/cystatin-c-with-egfr\"><strong>Cystatin C Test with eGFR<\/strong><\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.ultalabtests.com\/test\/estimated-glomerular-filtration-rate-egfr-with-creatinine-and-cystatin-c\"><strong>Estimated Glomerular Filtration Rate with Creatinine and Cystatin C<\/strong><\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.ultalabtests.com\/test\/renal-function-panel\"><strong>Renal Function Panel Test<\/strong><\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.ultalabtests.com\/test\/protein-total-random-urine-with-creatini\"><strong>Protein Total Random Urine Test with Creatinine<\/strong><\/a><\/li>\n<\/ul>\n\n\n\n<h3 id=\"h-comprehensive-or-provider-directed-testing\" class=\"wp-block-heading\">Comprehensive or Provider-Directed Testing<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">People with established CKD or suspected complications may need additional testing based on their history, symptoms, CKD stage, and prior results:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.ultalabtests.com\/test\/complete-blood-count-with-differential-and-platelets-cbc-test\"><strong>Complete Blood Count with Differential and Platelets<\/strong><\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.ultalabtests.com\/test\/hemoglobin-a1c-and-glucose-panel\"><strong>Hemoglobin A1c and Glucose Panel<\/strong><\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.ultalabtests.com\/test\/lipid-panel-test\"><strong>Lipid Panel Test<\/strong><\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.ultalabtests.com\/test\/calcium-test\/%23\/VUxUQUEwODA%3D\"><strong>Calcium Test<\/strong><\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.ultalabtests.com\/test\/phosphate-as-phosphorus\"><strong>Phosphate (as Phosphorus) Test<\/strong><\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.ultalabtests.com\/test\/pth-intact-test\"><strong>PTH Intact Test<\/strong><\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.ultalabtests.com\/test\/vitamin-d-25-hydroxy-total-test\"><strong>Vitamin D 25-Hydroxy Total Test<\/strong><\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.ultalabtests.com\/test\/ferritin-iron-and-total-iron-binding-capacity-panel\"><strong>Ferritin, Iron and Total Iron Binding Capacity Panel<\/strong><\/a><\/li>\n\n\n\n<li>Cause-specific autoimmune, infectious, or protein studies selected by a healthcare provider<\/li>\n\n\n\n<li>Kidney imaging when clinically appropriate<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">These tests should not be ordered as a universal package for everyone. Specialized cause testing is most useful when guided by medical history, urine findings, physical examination, and a healthcare provider.<\/p>\n\n\n\n<h3 id=\"h-follow-up-and-monitoring\" class=\"wp-block-heading\">Follow-Up and Monitoring<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Follow-up frequency depends on:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>eGFR category<\/li>\n\n\n\n<li>uACR category<\/li>\n\n\n\n<li>Rate of change<\/li>\n\n\n\n<li>Diabetes and blood pressure status<\/li>\n\n\n\n<li>Medications<\/li>\n\n\n\n<li>Previous acute kidney injury<\/li>\n\n\n\n<li>Other health conditions<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">A healthcare provider may repeat an unexpected abnormal test sooner to rule out a temporary change. Confirming CKD generally requires evidence that the abnormality has persisted for at least three months.<\/p>\n\n\n\n<h2 id=\"h-how-to-understand-kidney-lab-results\" class=\"wp-block-heading\">How to Understand Kidney Lab Results<\/h2>\n\n\n\n<h3 id=\"h-reference-ranges-are-not-diagnoses\" class=\"wp-block-heading\">Reference Ranges Are Not Diagnoses<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A result outside the laboratory range does not automatically mean chronic kidney disease. Likewise, a result inside the range does not exclude early kidney damage.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Interpretation depends on:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Prior results and trends<\/li>\n\n\n\n<li>Age and body composition<\/li>\n\n\n\n<li>Muscle mass<\/li>\n\n\n\n<li>Hydration<\/li>\n\n\n\n<li>Recent illness<\/li>\n\n\n\n<li>Medications and supplements<\/li>\n\n\n\n<li>Recent intense physical activity<\/li>\n\n\n\n<li>Urinary infection or bleeding<\/li>\n\n\n\n<li>Diabetes and blood pressure<\/li>\n\n\n\n<li>Other blood and urine findings<\/li>\n<\/ul>\n\n\n\n<h3 id=\"h-egfr-is-an-estimate-not-an-exact-percentage\" class=\"wp-block-heading\">eGFR Is an Estimate\u2014Not an Exact Percentage<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">An eGFR of 45 does not necessarily mean the kidneys are functioning at exactly 45% of normal. eGFR is a calculated estimate with expected biological and analytical variation.<\/p>\n\n\n\n<h3 id=\"h-one-low-egfr-may-be-temporary\" class=\"wp-block-heading\">One Low eGFR May Be Temporary<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Possible reasons for a temporary decrease include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Dehydration<\/li>\n\n\n\n<li>Acute illness<\/li>\n\n\n\n<li>Reduced blood flow to the kidneys<\/li>\n\n\n\n<li>Medication effects<\/li>\n\n\n\n<li>Urinary obstruction<\/li>\n\n\n\n<li>Acute kidney injury<\/li>\n<\/ul>\n\n\n\n<h3 id=\"h-one-elevated-uacr-may-also-be-temporary\" class=\"wp-block-heading\">One Elevated uACR May Also Be Temporary<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Albumin may rise temporarily during strenuous exercise, fever, infection, uncontrolled blood glucose, severe blood pressure elevation, heart failure, or urinary bleeding. Repeating the test can help determine whether albuminuria is persistent.<\/p>\n\n\n\n<h3 id=\"h-trends-are-often-more-informative\" class=\"wp-block-heading\">Trends Are Often More Informative<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A healthcare provider may compare:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Current and prior eGFR<\/li>\n\n\n\n<li>Rate of eGFR decline<\/li>\n\n\n\n<li>Current and prior uACR<\/li>\n\n\n\n<li>Creatinine and cystatin C estimates<\/li>\n\n\n\n<li>Potassium and bicarbonate<\/li>\n\n\n\n<li>Hemoglobin<\/li>\n\n\n\n<li>Calcium, phosphorus, and PTH<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">A stable result and a rapidly changing result can have very different implications even when the numerical values are similar.<\/p>\n\n\n\n<h2 id=\"h-preparing-for-kidney-testing\" class=\"wp-block-heading\">Preparing for Kidney Testing<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Preparation varies by test and panel. Always review the specific instructions provided with the order.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Fasting is usually not required for an isolated <a href=\"https:\/\/www.ultalabtests.com\/test\/creatinine\">Creatinine Test<\/a>, <a href=\"https:\/\/www.ultalabtests.com\/test\/cystatin-c-with-egfr\">Cystatin C Test with eGFR<\/a>, <a href=\"https:\/\/www.ultalabtests.com\/test\/albumin-random-urine-test-with-creatinine\">Albumin Random Urine Test with Creatinine<\/a>, or <a href=\"https:\/\/www.ultalabtests.com\/test\/urinalysis-ua-complete\">Urinalysis Complete Test<\/a>, but it may be required when glucose, lipids, or other fasting tests are included.<\/li>\n\n\n\n<li>Maintain your usual fluid intake unless instructed otherwise. Deliberately overhydrating may dilute a urine specimen.<\/li>\n\n\n\n<li>Ask whether intense exercise should be avoided before creatinine or urine protein testing.<\/li>\n\n\n\n<li>Tell your healthcare provider about prescription medications, over-the-counter pain relievers, supplements, creatine products, and recent contrast imaging.<\/li>\n\n\n\n<li>Follow clean-catch instructions when providing a urine specimen.<\/li>\n\n\n\n<li>Ask whether urine testing should be postponed during a urinary infection, visible bleeding, fever, or menstruation.<\/li>\n\n\n\n<li>Bring identification, the required laboratory paperwork, and any preparation instructions to the collection site.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Do not stop or change a medication for testing unless the prescribing healthcare provider specifically instructs you to do so.<\/p>\n\n\n\n<h2 id=\"h-questions-to-ask-your-healthcare-provider\" class=\"wp-block-heading\">Questions to Ask Your Healthcare Provider<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Do my results meet the criteria for CKD, or should they be repeated first?<\/li>\n\n\n\n<li>What are my eGFR category and uACR category?<\/li>\n\n\n\n<li>Is there evidence that the abnormality has lasted at least three months?<\/li>\n\n\n\n<li>Could dehydration, illness, exercise, muscle mass, or medication have affected my results?<\/li>\n\n\n\n<li>Would cystatin C help clarify my eGFR?<\/li>\n\n\n\n<li>Is albumin or another type of protein present in my urine?<\/li>\n\n\n\n<li>What may be causing the abnormal result?<\/li>\n\n\n\n<li>Do I need kidney imaging or evaluation by a nephrologist?<\/li>\n\n\n\n<li>How often should eGFR and uACR be monitored?<\/li>\n\n\n\n<li>Are potassium, bicarbonate, hemoglobin, calcium, or phosphorus abnormal?<\/li>\n\n\n\n<li>Do any of my medications or supplements require review because of kidney function?<\/li>\n\n\n\n<li>Which symptoms should prompt urgent medical attention?<\/li>\n<\/ul>\n\n\n\n<h2 id=\"h-how-ulta-lab-tests-helps\" class=\"wp-block-heading\">How Ulta Lab Tests Helps<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Ulta Lab Tests gives patients direct access to many kidney-related laboratory tests online where available. Patients can review test descriptions and transparent pricing before ordering, visit an authorized patient service center for specimen collection, and receive results through a secure online account.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">No insurance is required for self-pay testing. HSA and FSA payment may be available for eligible services, and results can be shared with a physician or other qualified healthcare professional for interpretation and follow-up.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Direct access can make it easier to obtain objective health information, but it does not replace medical care. Significant or changing kidney abnormalities should be reviewed promptly with a healthcare provider.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Explore kidney testing options:<\/strong> <a href=\"https:\/\/www.ultalabtests.com\/testing\/categories\/kidney\">Kidney Tests at Ulta Lab Tests<\/a><\/p>\n\n\n\n<h2 id=\"h-frequently-asked-questions\" class=\"wp-block-heading\">Frequently Asked Questions<\/h2>\n\n\n\n<h3 id=\"h-what-blood-tests-are-used-to-check-for-chronic-kidney-disease\" class=\"wp-block-heading\">What Blood Tests Are Used to Check for Chronic Kidney Disease?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The most common blood test is a <a href=\"https:\/\/www.ultalabtests.com\/test\/creatinine\">Creatinine Test<\/a> with calculated eGFR. A <a href=\"https:\/\/www.ultalabtests.com\/test\/renal-function-panel\">Renal Function Panel Test<\/a> may also measure BUN, potassium, sodium, bicarbonate, calcium, phosphorus, glucose, and albumin. A <a href=\"https:\/\/www.ultalabtests.com\/test\/cystatin-c-with-egfr\">Cystatin C Test with eGFR<\/a> may be added when creatinine-based eGFR is uncertain. Blood testing should usually be paired with urine albumin testing because filtration and kidney damage are different measurements.<\/p>\n\n\n\n<h3 id=\"h-what-urine-test-is-most-important-for-ckd\" class=\"wp-block-heading\">What Urine Test Is Most Important for CKD?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The <a href=\"https:\/\/www.ultalabtests.com\/test\/albumin-random-urine-test-with-creatinine\">Albumin Random Urine Test with Creatinine<\/a> reports the urine albumin-to-creatinine ratio, or uACR, and is a key test for detecting albumin leakage. It can reveal kidney-filter damage even when eGFR remains above 60. A <a href=\"https:\/\/www.ultalabtests.com\/test\/urinalysis-ua-complete\">Urinalysis Complete Test<\/a> provides additional information about protein, blood, cells, infection markers, glucose, and urine concentration.<\/p>\n\n\n\n<h3 id=\"h-can-i-have-chronic-kidney-disease-without-symptoms\" class=\"wp-block-heading\">Can I Have Chronic Kidney Disease Without Symptoms?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Yes. Many people with early CKD feel completely well. Symptoms such as fatigue, swelling, nausea, itching, cramps, and urination changes are more likely as disease becomes advanced or complications develop. Because symptoms are unreliable in early disease, people with diabetes, high blood pressure, heart disease, or a family history of kidney failure should discuss testing with a healthcare provider.<\/p>\n\n\n\n<h3 id=\"h-what-does-an-egfr-below-60-mean\" class=\"wp-block-heading\">What Does an eGFR Below 60 Mean?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">An eGFR below 60 may indicate reduced kidney filtration, but one result does not necessarily establish CKD. Dehydration, acute illness, medication effects, or acute kidney injury can lower eGFR temporarily. When an eGFR remains below 60 for at least three months, it may meet the filtration criterion for CKD and should be interpreted with urine albumin and other clinical information.<\/p>\n\n\n\n<h3 id=\"h-can-you-have-ckd-with-an-egfr-above-60\" class=\"wp-block-heading\">Can You Have CKD With an eGFR Above 60?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Yes. CKD may be present with an eGFR above 60 when another persistent marker of kidney damage exists. Examples include albuminuria, abnormal urine sediment, structural kidney abnormalities, or certain tubular disorders. This is why urine albumin testing is important in addition to serum creatinine and eGFR.<\/p>\n\n\n\n<h3 id=\"h-is-uacr-the-same-as-a-microalbumin-test\" class=\"wp-block-heading\">Is uACR the Same as a Microalbumin Test?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The term \u201cmicroalbumin\u201d has historically referred to small but abnormal amounts of albumin in urine. The preferred modern measurement is the urine albumin-to-creatinine ratio, or uACR. The ratio adjusts albumin for urine concentration and is commonly reported in milligrams of albumin per gram of creatinine.<\/p>\n\n\n\n<h3 id=\"h-does-a-normal-creatinine-result-rule-out-kidney-disease\" class=\"wp-block-heading\">Does a Normal Creatinine Result Rule Out Kidney Disease?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">No. Creatinine is influenced by muscle mass and other factors. A person with low muscle mass may have a creatinine result within the laboratory range even when filtration is reduced. Kidney evaluation should consider calculated eGFR, urine albumin, urinalysis, health history, and trends. A <a href=\"https:\/\/www.ultalabtests.com\/test\/cystatin-c-with-egfr\">Cystatin C Test with eGFR<\/a> may be useful when creatinine is considered less reliable.<\/p>\n\n\n\n<h3 id=\"h-can-dehydration-affect-kidney-test-results\" class=\"wp-block-heading\">Can Dehydration Affect Kidney Test Results?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Yes. Dehydration may increase creatinine and BUN and temporarily lower calculated eGFR. However, an abnormal result should not automatically be attributed to dehydration without proper evaluation. A healthcare provider may recommend repeat testing after the temporary condition has resolved, particularly when the change is unexpected.<\/p>\n\n\n\n<h3 id=\"h-do-i-need-to-fast-for-kidney-function-testing\" class=\"wp-block-heading\">Do I Need to Fast for Kidney Function Testing?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Fasting is not usually required for an isolated <a href=\"https:\/\/www.ultalabtests.com\/test\/creatinine\">Creatinine Test<\/a>, <a href=\"https:\/\/www.ultalabtests.com\/test\/cystatin-c-with-egfr\">Cystatin C Test with eGFR<\/a>, <a href=\"https:\/\/www.ultalabtests.com\/test\/albumin-random-urine-test-with-creatinine\">Albumin Random Urine Test with Creatinine<\/a>, or <a href=\"https:\/\/www.ultalabtests.com\/test\/urinalysis-ua-complete\">Urinalysis Complete Test<\/a>. Fasting may be required when the order also includes glucose, insulin, triglycerides, or other tests with specific preparation instructions.<\/p>\n\n\n\n<h3 id=\"h-how-often-should-kidney-tests-be-repeated\" class=\"wp-block-heading\">How Often Should Kidney Tests Be Repeated?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Testing frequency varies according to eGFR, urine albumin, diabetes, blood pressure, medication use, and previous trends. An unexpected abnormality may be repeated sooner to determine whether it is temporary. People with established CKD may need periodic monitoring based on their combined eGFR and albuminuria risk category. A healthcare provider should determine the appropriate schedule.<\/p>\n\n\n\n<h3 id=\"h-can-i-order-kidney-tests-without-visiting-a-doctor\" class=\"wp-block-heading\">Can I Order Kidney Tests Without Visiting a Doctor?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ulta Lab Tests allows patients to order many kidney-related tests online where direct-access testing is available. Options include the <a href=\"https:\/\/www.ultalabtests.com\/test\/kidney-profile\">Kidney Profile<\/a>, <a href=\"https:\/\/www.ultalabtests.com\/test\/renal-function-panel\">Renal Function Panel Test<\/a>, <a href=\"https:\/\/www.ultalabtests.com\/test\/albumin-random-urine-test-with-creatinine\">Albumin Random Urine Test with Creatinine<\/a>, <a href=\"https:\/\/www.ultalabtests.com\/test\/cystatin-c-with-egfr\">Cystatin C Test with eGFR<\/a>, and <a href=\"https:\/\/www.ultalabtests.com\/test\/urinalysis-ua-complete\">Urinalysis Complete Test<\/a>. Results should be shared with a qualified healthcare provider, especially when eGFR is low, urine albumin is elevated, or results are changing.<\/p>\n\n\n\n<h3 id=\"h-when-should-i-see-a-kidney-specialist\" class=\"wp-block-heading\">When Should I See a Kidney Specialist?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Referral may be considered for advanced CKD, rapidly declining eGFR, severe albuminuria, persistent blood in the urine, resistant electrolyte abnormalities, suspected inherited disease, uncertain cause, or results that are difficult to interpret. Urgent symptoms such as severe shortness of breath, chest pain, confusion, or inability to urinate require immediate medical evaluation.<\/p>\n\n\n\n<h2 id=\"h-conclusion\" class=\"wp-block-heading\">Conclusion<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Chronic kidney disease often develops without early warning symptoms. Understanding both <strong>CKD stages<\/strong> and albuminuria categories provides a clearer picture of kidney health than relying on symptoms, creatinine, or eGFR alone.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The most useful initial evaluation typically combines a blood-based filtration estimate with a urine albumin measurement. Additional tests\u2014including a <a href=\"https:\/\/www.ultalabtests.com\/test\/cystatin-c-with-egfr\">Cystatin C Test with eGFR<\/a>, <a href=\"https:\/\/www.ultalabtests.com\/test\/renal-function-panel\">Renal Function Panel Test<\/a>, <a href=\"https:\/\/www.ultalabtests.com\/test\/urinalysis-ua-complete\">Urinalysis Complete Test<\/a>, <a href=\"https:\/\/www.ultalabtests.com\/test\/complete-blood-count-with-differential-and-platelets-cbc-test\">Complete Blood Count with Differential and Platelets<\/a>, glucose testing, and mineral-bone markers\u2014may provide further information when chosen according to individual risk and prior results.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.ultalabtests.com\">Ulta Lab Tests<\/a> offers direct access to kidney-related laboratory testing where available. <a href=\"https:\/\/www.ultalabtests.com\/testing\/categories\/kidney\">Explore kidney testing options<\/a> and review significant, persistent, or changing results with a qualified healthcare provider.<\/p>\n\n\n\n<h2 id=\"h-references\" class=\"wp-block-heading\">References<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li><a href=\"https:\/\/kdigo.org\/wp-content\/uploads\/2024\/03\/KDIGO-2024-CKD-Guideline.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">Kidney Disease: Improving Global Outcomes. KDIGO 2024 Clinical Practice Guideline for the Evaluation and Management of Chronic Kidney Disease.<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.cdc.gov\/kidney-disease\/php\/data-research\/index.html\" target=\"_blank\" rel=\"noreferrer noopener\">Centers for Disease Control and Prevention. Chronic Kidney Disease in the United States, 2026.<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.niddk.nih.gov\/health-information\/kidney-disease\/chronic-kidney-disease-ckd\/tests-diagnosis\" target=\"_blank\" rel=\"noreferrer noopener\">National Institute of Diabetes and Digestive and Kidney Diseases. Chronic Kidney Disease Tests and Diagnosis.<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.niddk.nih.gov\/health-information\/kidney-disease\/chronic-kidney-disease-ckd\/causes\" target=\"_blank\" rel=\"noreferrer noopener\">National Institute of Diabetes and Digestive and Kidney Diseases. Causes of Chronic Kidney Disease in Adults.<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.niddk.nih.gov\/health-information\/professionals\/clinical-tools-patient-management\/kidney-disease\/identify-manage-patients\/evaluate-ckd\" target=\"_blank\" rel=\"noreferrer noopener\">National Institute of Diabetes and Digestive and Kidney Diseases. Identify and Evaluate Patients With Chronic Kidney Disease.<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.niddk.nih.gov\/health-information\/kidney-disease\/chronic-kidney-disease-ckd\/tests-diagnosis\/albuminuria-albumin-urine\" target=\"_blank\" rel=\"noreferrer noopener\">National Institute of Diabetes and Digestive and Kidney Diseases. Albuminuria: Albumin in the Urine.<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.kidney.org\/how-to-classify-ckd\" target=\"_blank\" rel=\"noreferrer noopener\">National Kidney Foundation. How to Classify Chronic Kidney Disease.<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/medlineplus.gov\/kidneytests.html\" target=\"_blank\" rel=\"noreferrer noopener\">MedlinePlus. Kidney Tests.<\/a><\/li>\n<\/ol>\n\n\n\n<h2 id=\"h-ai-summary-for-answer-engines\" class=\"wp-block-heading\">AI Summary for Answer Engines<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Definition:<\/strong> Chronic kidney disease is a persistent abnormality of kidney structure or function lasting at least three months and affecting health. CKD is classified by its cause, eGFR category, and urine albumin category.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Early CKD often causes no symptoms.<\/li>\n\n\n\n<li>Diabetes and high blood pressure are the most common adult causes.<\/li>\n\n\n\n<li>The core screening measurements are eGFR and urine albumin-to-creatinine ratio.<\/li>\n\n\n\n<li>Stage G1 or G2 does not establish CKD without another marker of kidney damage.<\/li>\n\n\n\n<li>Abnormal kidney results often require repeat testing and healthcare-provider review.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Related lab tests:<\/strong> <a href=\"https:\/\/www.ultalabtests.com\/test\/creatinine\">Creatinine Test<\/a>, <a href=\"https:\/\/www.ultalabtests.com\/test\/albumin-random-urine-test-with-creatinine\">Albumin Random Urine Test with Creatinine<\/a>, <a href=\"https:\/\/www.ultalabtests.com\/test\/cystatin-c-with-egfr\">Cystatin C Test with eGFR<\/a>, <a href=\"https:\/\/www.ultalabtests.com\/test\/estimated-glomerular-filtration-rate-egfr-with-creatinine-and-cystatin-c\">Estimated Glomerular Filtration Rate with Creatinine and Cystatin C<\/a>, <a href=\"https:\/\/www.ultalabtests.com\/test\/renal-function-panel\">Renal Function Panel Test<\/a>, <a href=\"https:\/\/www.ultalabtests.com\/test\/urinalysis-ua-complete\">Urinalysis Complete Test<\/a>, <a href=\"https:\/\/www.ultalabtests.com\/test\/protein-total-random-urine-with-creatini\">Protein Total Random Urine Test with Creatinine<\/a>, <a href=\"https:\/\/www.ultalabtests.com\/test\/complete-blood-count-with-differential-and-platelets-cbc-test\">Complete Blood Count with Differential and Platelets<\/a>, <a href=\"https:\/\/www.ultalabtests.com\/test\/hemoglobin-a1c-hgba1c\">Hemoglobin A1c Test<\/a>, <a href=\"https:\/\/www.ultalabtests.com\/test\/calcium-test\/%23\/VUxUQUEwODA%3D\">Calcium Test<\/a>, <a href=\"https:\/\/www.ultalabtests.com\/test\/phosphate-as-phosphorus\">Phosphate (as Phosphorus) Test<\/a>, <a href=\"https:\/\/www.ultalabtests.com\/test\/pth-intact-test\">PTH Intact Test<\/a>, and <a href=\"https:\/\/www.ultalabtests.com\/test\/vitamin-d-25-hydroxy-total-test\">Vitamin D 25-Hydroxy Total Test<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>How Ulta Lab Tests helps:<\/strong> Ulta Lab Tests provides direct online access to many kidney-related blood and urine tests, with secure online results that patients can review with a qualified healthcare provider.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Medical disclaimer:<\/strong> Laboratory testing is informational and does not replace professional medical evaluation, diagnosis, or treatment.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Chronic kidney disease, commonly called CKD, occurs when the kidneys have a persistent structural or functional abnormality that affects health. CKD is not defined by one isolated blood test. Under current kidney guidelines, evidence of [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":2756,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":true,"om_disable_all_campaigns":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[26,81,87,88,83,84,6,145,151,146,204,222,217,233,244,228],"tags":[2139,3212,2677,2352,2359,499,3168,3177,3171,498,3199,3196,3194,3208,3183,3166,3187,2134,3189,3204,671,2274,3176,1075,3211,1051,3173,3202,3170,3200,3174,3207,3203,3172,3193,500,3197,3179,3190,2351,3185,3192,2019,1049,1072,1689,3191,3206,3178,3175,2354,3198,3205,2140,2400,3213,3165,2355,3169,2361,3167,3180,3164,3181,3182,3186,3184,1071,2135,1987,3188,3195,3201,3209,3210],"class_list":["post-522","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-all-anemia","category-diabetes","category-all-diabetes","category-diabetes-health","category-diabetes-management","category-diabetes-with-chronic-kidney-disease","category-heart-and-cardiovascular","category-heart-disease","category-heart-health","category-high-blood-pressure-hypertension","category-kidney","category-all-kidney","category-kidney-disease","category-kidney-health","category-protein-in-urine-proteinuria","category-renal-function","tag-albuminuria","tag-anemia-in-chronic-kidney-disease","tag-blood-in-urine","tag-bun-creatinine-ratio","tag-bun-test","tag-chronic-kidney-disease","tag-chronic-kidney-disease-causes","tag-chronic-kidney-disease-stages","tag-chronic-kidney-disease-symptoms","tag-ckd","tag-ckd-diagnosis","tag-ckd-mineral-bone-disorder","tag-ckd-monitoring","tag-ckd-risk-factors","tag-ckd-screening","tag-ckd-stages","tag-creatinine-and-cystatin-c","tag-creatinine-test","tag-cystatin-c-test","tag-diabetes-and-kidney-disease","tag-diabetic-kidney-disease","tag-direct-access-lab-testing","tag-early-signs-of-kidney-disease","tag-egfr-test","tag-electrolytes-and-kidney-disease","tag-estimated-glomerular-filtration-rate","tag-foamy-urine","tag-heart-disease-and-kidney-disease","tag-hematuria","tag-high-blood-pressure-and-kidney-disease","tag-high-creatinine","tag-how-to-interpret-egfr","tag-hypertension-and-kidney-disease","tag-kidney-blood-tests","tag-kidney-damage","tag-kidney-disease","tag-kidney-disease-blood-work","tag-kidney-disease-causes","tag-kidney-disease-screening","tag-kidney-disease-symptoms","tag-kidney-failure","tag-kidney-filtration","tag-kidney-function","tag-kidney-function-tests","tag-kidney-health","tag-kidney-health-testing","tag-kidney-profile","tag-kidney-test-results","tag-kidney-urine-tests","tag-low-egfr","tag-microalbumin-urine-test","tag-phosphorus-and-kidney-disease","tag-potassium-and-kidney-disease","tag-protein-in-urine","tag-proteinuria","tag-pth-and-kidney-disease","tag-renal-function","tag-renal-function-panel","tag-renal-function-tests","tag-silent-kidney-disease","tag-stage-1-ckd","tag-stage-2-ckd","tag-stage-3-ckd","tag-stage-3a-ckd","tag-stage-3b-ckd","tag-stage-4-ckd","tag-stage-5-ckd","tag-uacr-test","tag-urinalysis","tag-urine-albumin-creatinine-ratio","tag-urine-protein-creatinine-ratio","tag-vitamin-d-and-kidney-disease","tag-what-does-high-creatinine-mean","tag-what-does-low-egfr-mean","tag-what-is-albumin-in-urine"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.3 (Yoast SEO v28.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Chronic Kidney Disease: Understand CKD Stages, Causes, Symptoms, and Kidney Tests<\/title>\n<meta name=\"description\" content=\"Learn chronic kidney disease symptoms, CKD stages, and kidney function tests, including eGFR, creatinine, and uACR.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.ultalabtests.com\/blog\/kidney\/chronic-kidney-disease-stages-causes-symptoms-tests\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Chronic Kidney Disease: Understand CKD Stages, Causes, Symptoms, and Kidney Tests\" \/>\n<meta property=\"og:description\" content=\"Learn chronic kidney disease symptoms, CKD stages, and kidney function tests, including eGFR, creatinine, and uACR.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.ultalabtests.com\/blog\/kidney\/chronic-kidney-disease-stages-causes-symptoms-tests\/\" \/>\n<meta property=\"og:site_name\" content=\"Ulta Lab Tests\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/facebook.com\/ultalabtests\" \/>\n<meta property=\"article:published_time\" content=\"2026-07-06T21:02:41+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-07-14T01:04:38+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.ultalabtests.com\/blog\/wp-content\/uploads\/2024\/11\/Chronic-Kidney-Disease-CKD-Stages-Causes-Symptoms-and-Tests-Medium.jpeg\" \/>\n\t<meta property=\"og:image:width\" content=\"640\" \/>\n\t<meta property=\"og:image:height\" content=\"640\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"John R\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"John R\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"20 minutes\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Chronic Kidney Disease: Understand CKD Stages, Causes, Symptoms, and Kidney Tests","description":"Learn chronic kidney disease symptoms, CKD stages, and kidney function tests, including eGFR, creatinine, and uACR.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.ultalabtests.com\/blog\/kidney\/chronic-kidney-disease-stages-causes-symptoms-tests\/","og_locale":"en_US","og_type":"article","og_title":"Chronic Kidney Disease: Understand CKD Stages, Causes, Symptoms, and Kidney Tests","og_description":"Learn chronic kidney disease symptoms, CKD stages, and kidney function tests, including eGFR, creatinine, and uACR.","og_url":"https:\/\/www.ultalabtests.com\/blog\/kidney\/chronic-kidney-disease-stages-causes-symptoms-tests\/","og_site_name":"Ulta Lab Tests","article_publisher":"https:\/\/facebook.com\/ultalabtests","article_published_time":"2026-07-06T21:02:41+00:00","article_modified_time":"2026-07-14T01:04:38+00:00","og_image":[{"width":640,"height":640,"url":"https:\/\/www.ultalabtests.com\/blog\/wp-content\/uploads\/2024\/11\/Chronic-Kidney-Disease-CKD-Stages-Causes-Symptoms-and-Tests-Medium.jpeg","type":"image\/jpeg"}],"author":"John R","twitter_card":"summary_large_image","twitter_misc":{"Written by":"John R","Est. reading time":"20 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.ultalabtests.com\/blog\/kidney\/chronic-kidney-disease-stages-causes-symptoms-tests\/#article","isPartOf":{"@id":"https:\/\/www.ultalabtests.com\/blog\/kidney\/chronic-kidney-disease-stages-causes-symptoms-tests\/"},"author":{"name":"John R","@id":"https:\/\/www.ultalabtests.com\/blog\/#\/schema\/person\/e9af1f4fe34b68909911dc95c313ed6a"},"headline":"Chronic Kidney Disease: Understand CKD Stages, Causes, Symptoms, and Kidney Tests","datePublished":"2026-07-06T21:02:41+00:00","dateModified":"2026-07-14T01:04:38+00:00","mainEntityOfPage":{"@id":"https:\/\/www.ultalabtests.com\/blog\/kidney\/chronic-kidney-disease-stages-causes-symptoms-tests\/"},"wordCount":4424,"commentCount":0,"publisher":{"@id":"https:\/\/www.ultalabtests.com\/blog\/#organization"},"image":{"@id":"https:\/\/www.ultalabtests.com\/blog\/kidney\/chronic-kidney-disease-stages-causes-symptoms-tests\/#primaryimage"},"thumbnailUrl":"https:\/\/i0.wp.com\/www.ultalabtests.com\/blog\/wp-content\/uploads\/2024\/11\/Chronic-Kidney-Disease-CKD-Stages-Causes-Symptoms-and-Tests-Medium.jpeg?fit=640%2C640&quality=100&ssl=1","keywords":["albuminuria","anemia in chronic kidney disease","blood in urine","BUN creatinine ratio","BUN test","Chronic Kidney Disease","chronic kidney disease causes","chronic kidney disease stages","chronic kidney disease symptoms","CKD","CKD diagnosis","CKD mineral bone disorder","CKD monitoring","CKD risk factors","CKD screening","CKD stages","creatinine and cystatin C","creatinine test","cystatin C test","diabetes and kidney disease","Diabetic Kidney Disease","direct access lab testing","early signs of kidney disease","eGFR test","electrolytes and kidney disease","Estimated Glomerular Filtration Rate","foamy urine","heart disease and kidney disease","hematuria","high blood pressure and kidney disease","high creatinine","how to interpret eGFR","hypertension and kidney disease","kidney blood tests","kidney damage","kidney disease","kidney disease blood work","kidney disease causes","kidney disease screening","kidney disease symptoms","kidney failure","kidney filtration","kidney function","Kidney function tests","Kidney health","Kidney Health Testing","kidney profile","kidney test results","kidney urine tests","low eGFR","microalbumin urine test","phosphorus and kidney disease","potassium and kidney disease","protein in urine","proteinuria","PTH and kidney disease","renal function","renal function panel","renal function tests","silent kidney disease","stage 1 CKD","stage 2 CKD","stage 3 CKD","stage 3a CKD","stage 3b CKD","stage 4 CKD","stage 5 CKD","uACR test","urinalysis","urine albumin creatinine ratio","urine protein creatinine ratio","vitamin D and kidney disease","what does high creatinine mean","what does low eGFR mean","what is albumin in urine"],"articleSection":["Anemia","Diabetes","Diabetes","Diabetes Health","Diabetes Management","Diabetes with Chronic Kidney Disease","Heart &amp; Cardiovascular","Heart Disease","Heart Health","High Blood Pressure (Hypertension)","Kidney","Kidney","Kidney Disease","Kidney Health","Protein in Urine (Proteinuria)","Renal Function"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.ultalabtests.com\/blog\/kidney\/chronic-kidney-disease-stages-causes-symptoms-tests\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.ultalabtests.com\/blog\/kidney\/chronic-kidney-disease-stages-causes-symptoms-tests\/","url":"https:\/\/www.ultalabtests.com\/blog\/kidney\/chronic-kidney-disease-stages-causes-symptoms-tests\/","name":"Chronic Kidney Disease: Understand CKD Stages, Causes, Symptoms, and Kidney Tests","isPartOf":{"@id":"https:\/\/www.ultalabtests.com\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.ultalabtests.com\/blog\/kidney\/chronic-kidney-disease-stages-causes-symptoms-tests\/#primaryimage"},"image":{"@id":"https:\/\/www.ultalabtests.com\/blog\/kidney\/chronic-kidney-disease-stages-causes-symptoms-tests\/#primaryimage"},"thumbnailUrl":"https:\/\/i0.wp.com\/www.ultalabtests.com\/blog\/wp-content\/uploads\/2024\/11\/Chronic-Kidney-Disease-CKD-Stages-Causes-Symptoms-and-Tests-Medium.jpeg?fit=640%2C640&quality=100&ssl=1","datePublished":"2026-07-06T21:02:41+00:00","dateModified":"2026-07-14T01:04:38+00:00","description":"Learn chronic kidney disease symptoms, CKD stages, and kidney function tests, including eGFR, creatinine, and uACR.","breadcrumb":{"@id":"https:\/\/www.ultalabtests.com\/blog\/kidney\/chronic-kidney-disease-stages-causes-symptoms-tests\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.ultalabtests.com\/blog\/kidney\/chronic-kidney-disease-stages-causes-symptoms-tests\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.ultalabtests.com\/blog\/kidney\/chronic-kidney-disease-stages-causes-symptoms-tests\/#primaryimage","url":"https:\/\/i0.wp.com\/www.ultalabtests.com\/blog\/wp-content\/uploads\/2024\/11\/Chronic-Kidney-Disease-CKD-Stages-Causes-Symptoms-and-Tests-Medium.jpeg?fit=640%2C640&quality=100&ssl=1","contentUrl":"https:\/\/i0.wp.com\/www.ultalabtests.com\/blog\/wp-content\/uploads\/2024\/11\/Chronic-Kidney-Disease-CKD-Stages-Causes-Symptoms-and-Tests-Medium.jpeg?fit=640%2C640&quality=100&ssl=1","width":640,"height":640,"caption":"Understand chronic kidney disease stages 1\u20135, major risk factors, early symptoms, and the kidney function tests used to evaluate filtration and kidney damage."},{"@type":"BreadcrumbList","@id":"https:\/\/www.ultalabtests.com\/blog\/kidney\/chronic-kidney-disease-stages-causes-symptoms-tests\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Ulta Lab Tests","item":"https:\/\/www.ultalabtests.com\/blog\/"},{"@type":"ListItem","position":2,"name":"Kidney","item":"https:\/\/www.ultalabtests.com\/blog\/category\/kidney\/"},{"@type":"ListItem","position":3,"name":"Chronic Kidney Disease: Understand CKD Stages, Causes, Symptoms, and Kidney Tests"}]},{"@type":"WebSite","@id":"https:\/\/www.ultalabtests.com\/blog\/#website","url":"https:\/\/www.ultalabtests.com\/blog\/","name":"Ulta Lab Tests","description":"You Order the Test. We&#039;ll Do the Rest!","publisher":{"@id":"https:\/\/www.ultalabtests.com\/blog\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.ultalabtests.com\/blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.ultalabtests.com\/blog\/#organization","name":"Ulta Lab Tests","url":"https:\/\/www.ultalabtests.com\/blog\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.ultalabtests.com\/blog\/#\/schema\/logo\/image\/","url":"https:\/\/i0.wp.com\/www.ultalabtests.com\/blog\/wp-content\/uploads\/2023\/02\/logo.png?fit=405%2C79&ssl=1","contentUrl":"https:\/\/i0.wp.com\/www.ultalabtests.com\/blog\/wp-content\/uploads\/2023\/02\/logo.png?fit=405%2C79&ssl=1","width":405,"height":79,"caption":"Ulta Lab Tests"},"image":{"@id":"https:\/\/www.ultalabtests.com\/blog\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/facebook.com\/ultalabtests","http:\/\/www.linkedin.com\/company\/3335617"]},{"@type":"Person","@id":"https:\/\/www.ultalabtests.com\/blog\/#\/schema\/person\/e9af1f4fe34b68909911dc95c313ed6a","name":"John R","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/secure.gravatar.com\/avatar\/d48f9c8356694121fd9e2793e13d6aa6855e5df11f9b14f7a872b4ea554581fb?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/d48f9c8356694121fd9e2793e13d6aa6855e5df11f9b14f7a872b4ea554581fb?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/d48f9c8356694121fd9e2793e13d6aa6855e5df11f9b14f7a872b4ea554581fb?s=96&d=mm&r=g","caption":"John R"}}]}},"featured_image_src":"https:\/\/i0.wp.com\/www.ultalabtests.com\/blog\/wp-content\/uploads\/2024\/11\/Chronic-Kidney-Disease-CKD-Stages-Causes-Symptoms-and-Tests-Medium.jpeg?resize=600%2C400&quality=100&ssl=1","featured_image_src_square":"https:\/\/i0.wp.com\/www.ultalabtests.com\/blog\/wp-content\/uploads\/2024\/11\/Chronic-Kidney-Disease-CKD-Stages-Causes-Symptoms-and-Tests-Medium.jpeg?resize=600%2C600&quality=100&ssl=1","author_info":{"display_name":"John R","author_link":"https:\/\/www.ultalabtests.com\/blog\/author\/johnroehmultalabtests-com\/"},"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.ultalabtests.com\/blog\/wp-content\/uploads\/2024\/11\/Chronic-Kidney-Disease-CKD-Stages-Causes-Symptoms-and-Tests-Medium.jpeg?fit=640%2C640&quality=100&ssl=1","_links":{"self":[{"href":"https:\/\/www.ultalabtests.com\/blog\/wp-json\/wp\/v2\/posts\/522","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ultalabtests.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ultalabtests.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ultalabtests.com\/blog\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ultalabtests.com\/blog\/wp-json\/wp\/v2\/comments?post=522"}],"version-history":[{"count":0,"href":"https:\/\/www.ultalabtests.com\/blog\/wp-json\/wp\/v2\/posts\/522\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ultalabtests.com\/blog\/wp-json\/wp\/v2\/media\/2756"}],"wp:attachment":[{"href":"https:\/\/www.ultalabtests.com\/blog\/wp-json\/wp\/v2\/media?parent=522"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ultalabtests.com\/blog\/wp-json\/wp\/v2\/categories?post=522"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ultalabtests.com\/blog\/wp-json\/wp\/v2\/tags?post=522"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}