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 Myeloperoxidase Antibody test, also known as MPO Antibody test, is a blood test that measures the presence and levels of myeloperoxidase antibodies in the bloodstream. Myeloperoxidase (MPO) is an enzyme found in white blood cells called neutrophils, and it plays a crucial role in the immune system's response to infections. The test is used to detect and evaluate autoimmune conditions known as ANCA-associated vasculitis, which can cause inflammation and damage to blood vessels and various organs.
: Serum

: Urine

: Stool/Feces

: Plasma-Unspecified Vial Pour

The Parietal Cell Antibody, Enzyme-Linked Immunosorbent Assay (ELISA) test is a medical laboratory examination that measures the presence of antibodies against parietal cells in the stomach. This test is crucial in diagnosing autoimmune conditions that affect the stomach lining and the production of intrinsic factor, such as autoimmune gastritis and pernicious anemia.
: Serum
Also Known As: Gastric Parietal Cell Antibody Test, Anti-Parietal Cell Antibody Test, Anti-GPA Test, AGPA Test, APCA Test

The prealbumin test, also known as transthyretin (TTR) test, is a laboratory test that measures the levels of prealbumin in the blood. Prealbumin is a protein primarily produced by the liver and plays a crucial role in transporting thyroid hormones and vitamin A.
: Serum
Also Known As: Thyroxine-binding Prealbumin Test, Transthyretin Test

 The Protein Total and Protein Electrophoresis Random Urine test measures the total amount of proteins in a random urine sample and separates these proteins based on their size and charge. Electrophoresis, in this context, is a laboratory technique that uses an electric field to move and separate proteins in a medium, usually a gel. The resulting pattern can help identify abnormal protein production and differentiate between various types of proteins present in the urine.

The Protein Total and Albumin Test is a serum blood test that measures total protein and albumin levels in the blood. It helps assess nutritional status, liver and kidney function, and overall health. Abnormal levels may indicate conditions such as liver disease, kidney disorders, malnutrition, or inflammation.

: Serum

: Serum

The Prothrombin with INR and Partial Thromboplastin Times Test measures how long it takes blood to clot, assessing both the extrinsic and intrinsic clotting pathways. It helps detect bleeding or clotting disorders and monitor blood-thinning therapy.

Also Known As: PT with INR and aPTT Test, PT/INR and PTT Test

 The Red Blood Cell (RBC) Count test is a blood test that quantifies the number of red blood cells (RBCs) present in a specific volume of blood. Red blood cells are essential for life, as they carry oxygen from the lungs to the rest of the body and transport carbon dioxide from the body back to the lungs for exhalation.
: Blood

: Stool/Feces

The Reticulocyte Count Test measures the number of reticulocytes, or immature red blood cells, in the blood. It helps evaluate bone marrow function, monitor recovery from anemia, and assess how well the body is producing new red blood cells.

: Blood
Also Known As: Retic Count Reticulocyte Percent Test, Reticulocyte Index Test, Corrected Reticulocyte Test, Reticulocyte Production Index Test, RPI Test

The Rheumatoid Factor (RF) Test measures the level of rheumatoid factor antibodies in the blood. Elevated RF may indicate autoimmune conditions such as rheumatoid arthritis, Sjögren’s syndrome, or other inflammatory disorders, and helps support diagnosis and monitoring.

: Serum
Also Known As: RF Test, Rheumatoid Arthritis Factor Test

: Stool/Feces

 The Saccharomyces Cerevisiae IgA Antibodies test, often referred to as the ASCA (Anti-Saccharomyces Cerevisiae Antibodies) test, measures the concentration of IgA antibodies directed against the Saccharomyces cerevisiae yeast in the blood. Saccharomyces cerevisiae is a type of yeast used in baking and brewing.
: Serum

 The Saccharomyces Cerevisiae IgG Antibody test, commonly abbreviated as ASCA IgG, is a laboratory test used to detect the presence of IgG antibodies against Saccharomyces cerevisiae, a species of yeast. Saccharomyces cerevisiae is used in baking and brewing but can also serve as an antigen that triggers an immune response in certain individuals, leading to the production of ASCA IgG antibodies.
: Serum

: Serum

Most Popular

The Sed Rate Test, also called the ESR Test, measures how quickly red blood cells settle in a sample of blood. A faster rate may signal inflammation caused by infections, autoimmune diseases, arthritis, or other chronic conditions. Doctors use this test to investigate unexplained fever, joint pain, or muscle aches, and to monitor inflammatory disorders such as lupus or rheumatoid arthritis. The Sed Rate Test provides important insight into overall inflammatory activity.

: Blood
Also Known As: Erythrocyte Sedimentation Rate Test, ESR Test, Sedimentation Rate Test, Westergren Sedimentation Rate Test

The Serotonin Serum Test measures serotonin levels in the blood to evaluate mood disorders, anxiety, depression, and monitor carcinoid tumors. This serotonin blood test helps assess neurotransmitter balance, detect abnormal serotonin production, and support mental health diagnosis. It provides valuable insights for identifying serotonin-related conditions and guiding treatment.

: Serum
Also Known As: 5-Hydroxytryptamine test, 5-HT test, Serotonin Serum Test, Serotonin Blood Test

The Sickle Cell Screen Test checks for abnormal hemoglobin (hemoglobin S) in the blood, which is associated with sickle cell disease or trait. It helps identify individuals at risk, support diagnosis, and guide further confirmatory testing for sickle cell disorders.

: Blood
Also Known As: Sickle Cell Test, Hemoglobin S Test, Sickle Cell Blood Test

: Serum

Most Popular

The T3 Free Test measures free triiodothyronine (T3), the active thyroid hormone not bound to proteins, to assess thyroid function. It helps diagnose hyperthyroidism, hypothyroidism, goiter, and pituitary disorders. Doctors order this test to evaluate symptoms like fatigue, weight changes, anxiety, or irregular heartbeat and to monitor thyroid replacement or antithyroid therapy. The Free T3 Test provides key insight into metabolism, energy regulation, and overall endocrine health.

: Serum
Also Known As: Free T3 Test, Free Triiodothyronine Test, FT3 Test, T3F Test, Unbound T3 Test

Most Popular

The T4 Free Test measures the level of free thyroxine (T4) in blood, the active thyroid hormone not bound to proteins. It helps diagnose thyroid disorders such as hypothyroidism, hyperthyroidism, and goiter, as well as pituitary conditions affecting hormone regulation. Doctors use this test to evaluate symptoms like fatigue, weight changes, hair loss, or irregular heartbeat and to monitor thyroid replacement or antithyroid therapy, providing insight into metabolic and endocrine health.

: Serum
Also Known As: Free T4 Test, Free Thyroxine Test, FT4 Test, T4F Test, Unbound T4 Test

: Blood, Varied, Serum, Random

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