All Digestive System Tests

“All Digestive System Tests” brings your core GI lab options into one place. A proactive plan starts by matching your question—infection, inflammation, bleeding, malabsorption, reflux/dyspepsia, or pancreatic issues—to the right stool, breath, and blood tests. Noninvasive stool markers (calprotectin/lactoferrin) help separate inflammatory bowel disease (IBD) from non-inflammatory causes like IBS. Pathogen PCR and C. difficile testing identify infections fast. For upper-GI concerns, H. pylori stool antigen or urea breath tests evaluate ulcer risk. Chronic diarrhea, weight loss, or greasy ... See more

  • Page
  • 2
  • of
  • 9
  • Total Rows
  • 219
Name Matches
Serum, Varied, Random, Blood
Phlebotomist

Stool/Feces, Random, Blood, Varied, Serum
Phlebotomist

The Absolute Lymphocyte Count Test quantifies lymphocytes in blood, expressing immunity status through an absolute cell count rather than relative percentage. It aids in diagnosing immune disorders, tracking viral infection recovery, or identifying early signs of hematologic disease. By distinguishing lymphocytosis and lymphopenia, this test provides clinicians insight into immune suppression, overactivation, or recovery phases in infections or immunocompromised states.

Blood
Phlebotomist

Stool/Feces
Phlebotomist

The Aldolase Test measures levels of aldolase, an enzyme involved in breaking down glucose for energy. Elevated levels may indicate muscle damage, muscular dystrophy, polymyositis, dermatomyositis, or certain liver diseases. Doctors use this blood test to help diagnose and monitor muscle disorders, evaluate unexplained weakness, and track treatment response. It is often ordered alongside CK and other enzyme tests for a complete evaluation of muscle health.

Serum
Phlebotomist

The Alpha-1-Antitrypsin Quantitative Test measures levels of alpha-1-antitrypsin (AAT), a protein that protects the lungs and liver from damage. Low levels may indicate alpha-1-antitrypsin deficiency, a genetic disorder linked to emphysema, COPD, and liver disease. Doctors use this test to investigate unexplained lung or liver problems, confirm hereditary AAT deficiency, and guide treatment or monitoring strategies for long-term health management.

Serum
Phlebotomist
Also Known As: Alpha-1 Antitrypsin Test, A1AT Test, AAT Test, Alpha-1 Antitrypsin Serum Test

The Amylase Test measures amylase enzyme levels in blood to evaluate pancreatic and digestive health. Elevated amylase may indicate pancreatitis, gallbladder disease, intestinal blockage, or salivary gland disorders, while low levels may suggest chronic pancreatitis or liver damage. Doctors order this test to investigate abdominal pain, nausea, or fever. Results provide vital insight into pancreatic function, digestive disorders, and overall metabolic health.

Serum
Phlebotomist
Also Known As: Amy Test


The ANA Screen IFA with Reflex to Titer and Pattern Test detects antinuclear antibodies in blood to evaluate autoimmune activity. If positive, further testing identifies antibody concentration (titer) and fluorescence pattern, helping diagnose conditions like lupus, rheumatoid arthritis, or Sjögren’s syndrome. Doctors order this test to investigate symptoms such as joint pain, fatigue, rash, or swelling and to guide treatment for autoimmune and connective tissue disorders.

Also Known As: ANA Test, Antinuclear Antibody Screen Test


The ANCA Screen with Reflex to ANCA Titer detects antineutrophil cytoplasmic antibodies, often linked to autoimmune vasculitis such as granulomatosis with polyangiitis and microscopic polyangiitis. If the screen is positive, a titer is performed to measure antibody levels for greater diagnostic accuracy. Doctors use this test to evaluate unexplained inflammation, kidney or lung issues, and guide treatment decisions in autoimmune and systemic vasculitis care.

Serum
Phlebotomist
Also Known As: ANCA Test, cANCA Test, pANCA Test, Serine Protease 3 Test, Acticytoplasmic Test, 3-ANCA test, PR3-ANCA Test, MPO-ANCA test

The ANCA Vasculitides Test measures antibodies that target neutrophils, helping identify autoimmune vasculitis. It aids in diagnosing conditions including granulomatosis with polyangiitis and microscopic polyangiitis. This test provides insight into systemic inflammation, kidney disease, and respiratory involvement, supporting evaluation of autoimmune disorders linked to vascular and organ damage.

Serum
Phlebotomist

The Beta-2-Microglobulin (B2M) Test measures levels of B2M, a protein found on most cell surfaces and released into the blood. Elevated levels may indicate multiple myeloma, lymphoma, chronic infections, or kidney disease. Doctors order this test to evaluate cancer stage, prognosis, or kidney function. Results provide essential insight into disease progression, immune activity, and treatment monitoring for blood cancers and renal disorders.

Serum
Phlebotomist
Also Known As: B2M Test, β2-Microglobulin Test, Thymotaxin Test

Serum
Phlebotomist

Most Popular

The C-Peptide Test measures C-peptide levels in blood to assess insulin production and pancreatic function. Low levels may indicate type 1 diabetes or reduced insulin production, while high levels may suggest type 2 diabetes, insulin resistance, or insulinoma. Doctors use this test to differentiate diabetes types, monitor treatment, and evaluate unexplained hypoglycemia. It provides key insight into endocrine, pancreatic, and metabolic health.

Serum
Phlebotomist
Also Known As: Connecting Peptide Insulin Test, Proinsulin C-Peptide Test

The C-Peptide Response to Glucose Test with 2 specimens evaluates pancreatic beta cell activity and insulin secretion during glucose intake. By measuring changes in C-peptide levels at two time points, it helps assess insulin production, glucose regulation, and potential insulin resistance or diabetes-related disorders. This test offers insight into metabolic health and endocrine function.

Serum
Phlebotomist

The C-Peptide Response to Glucose Test with 3 specimens measures pancreatic beta cell function and insulin secretion at multiple time points. Tracking C-peptide levels across three collections provides insight into insulin production, glucose regulation, and metabolic health, supporting evaluation of diabetes risk, hypoglycemia, and overall endocrine function.

Serum
Phlebotomist

The C-Peptide Response to Glucose Test with 4 specimens measures pancreatic beta cell activity and insulin secretion across four timed intervals. Tracking C-peptide changes provides insight into glucose regulation, insulin production, and metabolic function, helping evaluate diabetes risk, hypoglycemia, insulin resistance, and overall endocrine health.

Serum
Phlebotomist

The C-Peptide Response to Glucose Test with 5 specimens measures pancreatic beta cell activity and insulin secretion across five timed intervals. Tracking C-peptide levels over multiple points provides detailed insight into glucose regulation, insulin resistance, hypoglycemia, and diabetes risk, supporting evaluation of metabolic balance and overall endocrine health.

Serum
Phlebotomist

The C-Peptide Response to Glucose Test with 6 specimens measures pancreatic beta cell activity and insulin secretion at six timed intervals. Tracking C-peptide levels across multiple points provides a detailed profile of insulin production, glucose regulation, and metabolic health, supporting assessment of insulin resistance, hypoglycemia, diabetes risk, and overall endocrine function.

Serum
Phlebotomist

The C-Peptide Response to Glucose Test with 7 specimens measures pancreatic beta cell activity and insulin secretion across seven timed intervals. Monitoring C-peptide changes over multiple collections provides detailed insight into insulin production, glucose regulation, and metabolic balance, supporting evaluation of diabetes risk, hypoglycemia, insulin resistance, and endocrine system health.

Serum
Phlebotomist

The C-Peptide Response to Glucose Test with 9 specimens measures pancreatic beta cell activity and insulin secretion across nine timed intervals. Tracking C-peptide patterns provides detailed insight into insulin production, glucose regulation, and metabolic health, supporting the detection of insulin resistance, diabetes risk, hypoglycemia, and overall endocrine function.

Serum
Phlebotomist

The C-Reactive Protein (CRP) Test measures CRP levels in blood to detect inflammation in the body. Elevated CRP may indicate infections, autoimmune disorders, or chronic diseases such as arthritis, cardiovascular disease, or inflammatory bowel disease. Doctors use this test to assess acute illness, monitor treatment response, and evaluate risk for heart disease. The CRP test provides key insight into inflammation, immune health, and overall wellness.

Serum
Phlebotomist
Also Known As: CRP Test, Inflammation Test

Most Popular

The High-Sensitivity C-Reactive Protein (hs-CRP) Test measures very low levels of CRP in blood to evaluate inflammation and cardiovascular risk. Elevated hs-CRP may indicate increased risk for heart disease, heart attack, or stroke even before symptoms appear. Doctors use this test along with cholesterol and other markers to assess overall heart health, guide prevention strategies, and monitor treatment. It also helps evaluate chronic inflammation and metabolic conditions.

Serum
Phlebotomist
Also Known As: Cardiac CRP Test, High Sensitivity C-Reactive Protein Test


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