Ulta Lab Tests

All Digestive System Tests

Order our digestive system tests to help diagnose intestine, colon, pancreas, and liver problems to achieve optimal gastrointestinal health.

Don't overlook your gastrointestinal health. With so much focus on cancer, heart attacks, and strokes, it's easy for your gut health to get lost in the shuffle.  However, it's important to have digestive lab tests done regularly. Catching digestive system conditions before they start is the best form of medicine.

The digestive system is a complex and vital part of the body and is responsible for breaking down food for energy or building blocks for cells. Digestive lab testing can provide insight into how the gastrointestinal tract functions and potentially diagnose ... See more

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The Carnitine test is a specialized laboratory assay designed to measure the concentration of carnitine—a vital compound—in the blood. Carnitine plays a crucial role in the transport of fatty acids into the mitochondria, the energy-producing centers of cells. This test offers insights into carnitine deficiency and metabolic abnormalities that affect energy metabolism.
: Serum
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 The carotene test is a blood test that measures the level of carotene in the serum. Carotene, which includes alpha-carotene and beta-carotene, is a type of antioxidant that belongs to the class of pigments called carotenoids. These pigments are responsible for the yellow, orange, and red colors in many fruits and vegetables. Once ingested, the body can convert certain carotenoids, particularly beta-carotene, into vitamin A, which plays a critical role in vision, growth, and immune system functions.
: Serum
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The CBC with H/H, RBC, Indices, WBC and Platelets Test evaluates overall blood health by measuring hemoglobin, hematocrit, red blood cell count, size and indices, white blood cell levels, and platelets. It helps detect anemia, infections, clotting disorders, and immune or bone marrow conditions. Frequently ordered in routine exams, this test supports diagnosis, monitoring of chronic disease, and assessment of general health.

: Blood
Also Known As: Complete Blood Count Test, Hemogram Test
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The CEA Test measures carcinoembryonic antigen levels in blood, a protein that may be elevated in certain cancers, especially colorectal, pancreatic, lung, breast, or ovarian cancer. It is not used alone for diagnosis but helps monitor cancer treatment, detect recurrence, and track disease progression. Elevated CEA can also occur in noncancerous conditions. Doctors use this test to support therapy decisions and provide insight into cancer management.

: Serum
Also Known As: Carcinoembryonic Antigen Test
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The Ceruloplasmin Test measures levels of ceruloplasmin, a copper-carrying protein made in the liver, to evaluate copper metabolism and related disorders. Low levels may indicate Wilson’s disease, Menkes disease, or severe liver disease, while high levels may suggest inflammation or pregnancy. Doctors order this test for patients with liver problems, neurological symptoms, or abnormal copper levels. Results help diagnose metabolic disorders and guide treatment.

: Serum
Also Known As: Copper Oxide Test, Wilson’s Disease Test
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: Blood
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The Chlamydia trachomatis RNA, TMA Urine Test detects active chlamydia infection using Transcription-Mediated Amplification (TMA) technology for high accuracy. This non-invasive urine test identifies RNA from Chlamydia trachomatis, helping diagnose one of the most common STDs. Early detection supports timely treatment, reduces complications, and prevents transmission.

: Varied
Also Known As: Chlamydia Trachomatis Test, Chlamydia STD Test, Chlamydia Urine Test
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The Chlamydia/Neisseria gonorrhoeae RNA TMA Urine Test detects RNA from Chlamydia trachomatis and Neisseria gonorrhoeae using transcription-mediated amplification (TMA) technology. This highly sensitive and specific test identifies active infections from a urine sample. Doctors use it to diagnose STDs, prevent complications like infertility or pelvic inflammatory disease, and ensure accurate treatment for sexual and reproductive health.

: Varied
Also Known As: Gonorrhea and Chlamydia Test
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: Serum
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 The Chromogranin A (CgA) test measures the level of chromogranin A in the blood. Chromogranin A is a protein found in neuroendocrine cells, which are distributed throughout the body and play a role in the nervous and endocrine systems. Elevated levels of chromogranin A can indicate the presence of a neuroendocrine tumor.
: Serum
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 The Clostridium Difficile Toxin B Qualitative Real-Time PCR test is a molecular diagnostic test that utilizes polymerase chain reaction (PCR) techniques to detect the presence of toxin B gene from the Clostridium difficile bacteria in a stool sample. Real-time PCR is advantageous because it provides rapid results and can quantify the amount of bacterial DNA present, which can be useful in understanding the severity of the infection.
: Stool/Feces
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: Stool/Feces
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The Complement Total (CH50) test is a blood test that measures the overall activity of the complement system, a group of proteins in the blood that play a crucial role in the immune response. The test assesses the ability of the complement system to destroy foreign particles, such as bacteria and immune complexes.
: Serum
Also Known As: CH50 Test, Total Complement Test, Complement Activity Test, Total Complement Activity Test
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The Complete Blood Count with Differential and Platelets Test is a comprehensive blood test that checks red blood cells, white blood cells, hemoglobin, hematocrit, and platelets. The differential analyzes types of white blood cells to detect infections, anemia, clotting abnormalities, immune conditions, and certain cancers. This essential test is often ordered for routine health exams, diagnosis, and monitoring treatment progress.

: Blood
Also Known As: CBC Test, CBC with Differential and Platelets Test, CBC w/Diff and Platelets Test, Full Blood Count Test, Complete Blood Count Test
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The Comprehensive Metabolic Panel (CMP) Test measures 21 markers to assess metabolic health, liver and kidney function, and electrolyte balance. It includes glucose, calcium, sodium, potassium, chloride, CO2, albumin, globulin, A/G ratio, total protein, bilirubin, ALP, AST, ALT, BUN, creatinine, BUN/creatinine ratio, and eGFR. The CMP helps detect diabetes, liver or kidney disease, and supports routine screening and chronic condition monitoring.

: Serum
Also Known As: CMP Test, Chemistry Panel Test, Chem Test, Chem 21 Test, Chem 14 Test 
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The Creatine Kinase (CK) Total Test measures CK enzyme levels in blood to detect muscle injury, inflammation, or stress. Elevated CK may indicate muscle disorders, heart attack, strenuous exercise, or conditions such as rhabdomyolysis, while low levels are less common. Doctors use this test to evaluate unexplained muscle pain, weakness, or chest pain and to monitor recovery. It provides insight into muscle, cardiac, and overall metabolic health.

: Serum
Also Known As: CK Total Test, Creatine Phosphokinase, CPK Test
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The Creatine Kinase (CK) Isoenzymes with Total CK Panel measures overall CK levels and breaks them into isoenzymes (CK-MM, CK-MB, CK-BB) to identify muscle, heart, or brain injury. Elevated CK-MB may suggest a heart attack, while CK-MM points to skeletal muscle damage, and CK-BB indicates brain injury. Doctors order this test for chest pain, muscle weakness, or trauma. Results provide critical insight for diagnosing and monitoring tissue damage.

Also Known As: CPK Isoenzymes Test
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: Serum
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 The Creatine 24-Hour Urine test measures the amount of creatine excreted in urine over a 24-hour period. Creatine, not to be confused with creatinine, is a molecule synthesized in the body and primarily stored in muscles. It is metabolized to creatinine and subsequently excreted in the urine. The 24-hour urine collection method provides a more accurate measure than a single "spot" urine sample since creatine excretion can vary throughout the day.
: Varied
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The Culture Urine Routine Test detects and identifies bacteria or yeast in urine that cause urinary tract infections (UTIs). By growing microorganisms in a lab, this test determines the type of infection and guides effective treatment. Doctors use it to evaluate symptoms such as painful urination, frequent urges, or fever and to monitor recurrent UTIs. Results provide critical insight for diagnosis, antibiotic selection, and urinary health management.

: Random
Also Known As: Urine Culture Test, Urine Culture and Sensitivity, UTI test
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The Cyclic Citrullinated Peptide (CCP) IgG Antibody Test helps diagnose rheumatoid arthritis by detecting antibodies strongly linked to autoimmune joint disease. A positive result may indicate early or developing RA, even before symptoms appear. Doctors order this test for patients with joint pain, stiffness, or swelling. Results, often used with the rheumatoid factor (RF) test, provide valuable insight into autoimmune activity and long-term joint health management.

: Serum
Also Known As: Anti-CCP, Cyclic Citrullinated Peptide IgG Antibody Test
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The Cystatin C Test with eGFR measures blood levels of cystatin C, a protein filtered by the kidneys, and calculates estimated glomerular filtration rate (eGFR). This test provides a sensitive marker for kidney function and can detect early kidney disease, even when creatinine levels are normal. Doctors order it to evaluate chronic kidney disease risk, monitor treatment, and assess overall kidney health in patients with diabetes, hypertension, or other conditions.

: Serum
Also Known As: CysX Test, CysC Test
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The Direct Antiglobulin Test (DAT) with Reflex to Anti-C3 and Anti-IgG is a specialized blood test used to determine if antibodies or complement proteins are attached to the surface of red blood cells, which may cause the cells to be destroyed prematurely. The test initially carries out a Direct Antiglobulin Test, and if positive, it reflexes to additional testing for Anti-C3 and Anti-IgG to identify which specific substances are bound to the red blood cells.
: Blood
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 The Endomysial IgA Antibody Screen with Reflex to Titer test is a serologic assay used primarily to assist in the diagnosis of celiac disease. This test detects antibodies targeting the endomysium, which is a connective tissue layer that surrounds muscle fibers. A reflex to titer means that if the screening is positive, the lab will then measure the amount or "titer" of the antibodies present, which can give an indication of the severity or stage of the disease.
: Serum
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The Erythropoietin (EPO) Test measures levels of erythropoietin, a hormone made by the kidneys that stimulates red blood cell production. Abnormal levels may indicate anemia, chronic kidney disease, or bone marrow disorders. Elevated EPO can also occur with low oxygen levels or tumors. Doctors order this test for patients with unexplained fatigue, shortness of breath, or abnormal blood counts. Results help guide diagnosis, treatment, and monitoring of anemia-related conditions.

: Serum
Also Known As: Erythropoietin Test
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Digestive Health Conditions & Blood Tests

People tend to overlook their digestive health. With so much focus on cancer, heart attacks, and strokes, it's easy for your gut health to get lost in the shuffle. 

That's why it's vital to have digestive lab tests done regularly. Catching digestive system conditions before they start is the best way to treat them. 

If monitoring your gut health is new to you, don't worry. In this article, we're going to cover everything you need to know about your gut.  

Digestive System Conditions 

There are different kinds of gastrointestinal lab tests to monitor different enzymes and bacteria in your gut. The bacteria in your gut is known as "good bacteria." These bacteria need to maintain their presence in your stomach for the system to remain healthy in the long run. An unhealthy digestive system can give rise to the following conditions.

Celiac Disease 

This is an acute gluten sensitivity ... See more