Category: Kidney

Methotrexate monitoring checks treatment safety as well as the condition being treated. Your joints may feel better while a blood-count, liver, or kidney result still needs attention. That is why scheduled laboratory follow-up remains important […]

A cystatin C test measures a blood protein that can be used to estimate glomerular filtration rate, or eGFR. It is generally less influenced by muscle mass than creatinine, making it useful when a creatinine-based […]

Chronic kidney disease testing uses two complementary measurements: an eGFR test, usually calculated first from serum creatinine, and a urine albumin test, most often reported as the urine albumin-to-creatinine ratio (UACR). The eGFR test estimates […]

Your estimated glomerular filtration rate, or eGFR, may look similar to your last result, yet your clinician may still want to check potassium, bicarbonate, and blood counts. These tests answer questions about kidney disease that […]

Vitamin B12 deficiency develops when the body does not have enough usable B12 to support normal nerve function and blood-cell production. Autoimmune gastritis is one possible cause: immune damage to the stomach lining can interfere […]

Gout is an inflammatory arthritis caused by deposits of monosodium urate crystals in and around joints. Hyperuricemia means that serum urate—often reported as “uric acid”—is elevated. The two are related, but they are not interchangeable: […]

How aldosterone, renin, the aldosterone-to-renin ratio, potassium, and kidney function help explain a hormonal cause of high blood pressure. Primary aldosteronism (PA) is a disorder in which one or both adrenal glands produce aldosterone partly […]

Glucose results tell you about blood sugar. Kidney, lipid, and liver results answer additional questions about your health. A person can have an improving A1C while urine albumin remains elevated, cholesterol-related risk persists, or liver […]

How calcium, PTH, vitamin D, kidney function, and urine calcium work together to clarify a possible parathyroid disorder. Primary hyperparathyroidism (PHPT) occurs when one or more parathyroid glands release hormone inappropriately for the calcium concentration […]

Editorial status: Draft for named medical and laboratory review. Product URLs are supported by current Ulta Lab Tests search and internal-link evidence but still require a final in-site canonical check before publication. Obesity is a […]

Heart failure blood tests help answer different parts of the diagnostic puzzle. BNP or NT-proBNP can show that the heart is under increased wall stress, while kidney, electrolyte, blood-count, iron, thyroid, glucose, lipid, and liver […]

A blood-pressure cuff detects elevated pressure inside your arteries. Hypertension lab tests answer different questions: they can help show whether high blood pressure is affecting the kidneys, whether glucose or lipid abnormalities are adding cardiovascular […]

Troponin I and troponin T are different cardiac proteins measured with different laboratory assays. Both can show myocardial injury, but their numbers, units, reference limits, and changes over time are assay-specific. A high result does […]

Diabetic ketoacidosis, or DKA, develops when insulin is too low for the body's needs and the liver rapidly produces acidic ketones. The resulting crisis is not defined by one abnormal value. Clinicians must establish three […]

Diabetes blood tests are not interchangeable. In nonpregnant adults, A1C, fasting plasma glucose, and the two-hour plasma glucose value from a 75-gram oral glucose tolerance test can be used for screening and diagnostic support. A […]

What blood tests are used for metabolic health, weight loss, and GLP-1 monitoring? Metabolic health blood tests can help evaluate glucose regulation, cardiovascular risk, liver and kidney function, thyroid function, blood-cell patterns, and selected nutrient […]

Infectious disease testing is not one universal blood test. The right choice depends on the suspected organism, exposure date, symptoms, body site, vaccination history, and whether the goal is screening, diagnosing a current infection, confirming […]

Vitamin and nutrient deficiency tests are blood and, less often, urine tests used to investigate a defined question about low intake, malabsorption, blood loss, medication effects, pregnancy-related risk, a prior abnormal result, or possible supplement […]

Kidney function tests are most useful when they are interpreted together rather than as isolated numbers. A blood Creatinine Test supports an estimated glomerular filtration rate (eGFR), Cystatin C with eGFR can add a second […]

Osteoporosis is a condition in which bones lose strength and become more likely to fracture. A central DXA scan measures bone mineral density and helps diagnose or classify osteoporosis, but it does not explain why […]

Vitamin D tests do not all measure the same form of vitamin D. Learn which blood test is generally used to evaluate vitamin D status, when D2 and D3 fractions may add context, and why […]

An elevated creatine kinase (CK) result means that more of the CK enzyme is circulating in your blood than the laboratory’s reference range predicts. CK is found mainly in skeletal muscle, so an increase commonly […]

A laboratory result usually answers a straightforward question: How much of a substance is present? A biomarker ratio asks a second question: How does that result relate to another part of the same biological system? […]

Rapid weight loss with medications such as semaglutide and tirzepatide can lead to meaningful changes in body weight, appetite, blood sugar, and cardiometabolic health. Semaglutide is a glucagon-like peptide-1 receptor agonist, commonly called a GLP-1 […]

Managing a chronic condition often involves much more than responding to symptoms. It may require regular medical visits, medication review, lifestyle support, home measurements, and laboratory testing that shows how the body is functioning over […]