Contact Us 1-800-539-6119

Covid Banner

Digestive System Tests

Thank you for shopping our Digestive Systems Tests. The digestive system, also known as the gastrointestinal system, is a complex set of organs that transport and process the food we eat and transform it into energy for our metabolism to consume. Digestive system tests can help determine whether or not this essential system is working properly and diagnose problems or gastrointestinal disorders of the pancreas, intestine, colon and liver. Order a digestive system blood test today to ensure optimal digestive health of your gastrointestinal tract!

Browse Digestive System Tests Subcategories

Choose One Lab: LABCORP (LC) or QUEST (QD) or ALL

Walk-In Lab is contracted with LabCorp (LC) and Quest Diagnostics (QD) for routine lab testing. Please choose LC or QD to complete your order. If you prefer to receive a kit by mail for specimen collection, please see our Home Test Kits. LC and QD tests must be ordered separately.

LabCorp: Online lab testing is prohibited in MA, MD, NY, NJ and RI.

Quest Diagnostics: Online lab testing is prohibited in NY, NJ and RI.

  • Hepatic Function (Liver) Panel Blood Test

    The Hepatic Function Panel (7) Blood Test is a liver function test that may be useful in screening for liver disease and liver damage.
    More Info
  • Liver Profile #1 Baseline Blood Test Panel

    A Liver Profile #1 Baseline Blood Test Panel includes: Hepatic-7 panel, Gamma-Glutamyl Transferase (GGT), Lactic acid dehydrogenase (LDH), and Total Cholesterol.
    More Info
  • Carcinoembryonic Antigen (CEA) Blood Test

    This CEA Blood Test measures the protein in the blood called carcinoembryonic antigen (CEA). This protein can be found on some cancer cell types. 
    More Info
  • Lipase Serum Test

    The Lipase Serum Test monitors pancreatic functions.
    More Info
  • Hepatitis C Antibody Blood Test

    A Hepatitis C Antibody Blood Test is used to assess exposure to Hepatitis C virus infection and tests blood safety.
    More Info
  • Anemia #1 Baseline Blood Test Panel

    An Anemia #1 Baseline Blood Test Panel includes an Iron w/TIBC, Ferritin and Transferrin.
    More Info
  • Amylase Serum Test

    An amylase serum test is used to diagnose pancreatitis or other pancreatic diseases.
    More Info
  • Gluten Blood Test

    A Gluten Blood Test diagnoses celiac disease. Usually ordered on patients with symptoms suggesting celiac disease, including abdominal pain and anemia.
    More Info
  • Gamma-Glutamyl Transferase (GGT) Blood Test

    A GGT test aids in detecting liver and bile duct injury.
    More Info
  • Hepatitis B Surface Antibody Blood Test, Quantitativ...

    A Hepatitis B Surface Antibody Blood Test, Quantitative evaluates possible immunity in individuals who are at increased risks for exposure to the hepatitis B.
    More Info
  • Ova and Parasites Examination Stool Test

    The Ova and Parasites Examination Stool Test is used to establish the diagnosis of parasitic infestation. Concentration of material and examination of specimen for ova and parasites by conventional iodine/saline and trichrome staining. This will not detect Cryptosporidium, Cyclospora cayetanensis, or Microsporidium.
    More Info
  • Hepatitis B Surface Antigen Blood Test

    Hepatitis B Surface Antigen Blood Test earliest indicator of the presence of acute infection.
    More Info
  • Ammonia Plasma Test

    This ammonia plasma test measures the amount of Ammonia in the blood, a compound produced by intestinal bacteria, and by cells in the body during the digestion of protein.
    More Info
  • C-Peptide Serum Test

    The C-Peptide Serum Test helps determines how much insulin the pancreas is producing.
    More Info
  • Hepatitis B Surface Antibody Blood Test, Qualitative

    The Hepatitis B Surface Antibody Blood Test, Qualitative is useful in the detection of previous exposure to HBV. 
    More Info
  • Candida Antibodies Blood Test, IgA, IgG, and IgM, EL...

    The Candida Antibodies Blood Test is used in the detection of IgG, IgA, and IgM antibodies to Candida albicans.
    More Info
  • Helicobacter pylori ( H. Pylori) Antigen Stool Test

    This H. Pylori Antigen Stool Test establishes the presence and possible etiologic role of Helicobacter pylori in cases of chronic gastric ulcer, gastritis, duodenal ulcer, dyspepsia, etc.
    More Info
  • Occult Blood, Fecal, Immunoassay Test

    An occult blood, fecal, immunoassay test is the qualitative detection of fecal occult blood.
    More Info
  • Tissue Transglutaminase (tTG) Blood Test, IgA

    A tTG blood test detects antibodies to aid in the diagnosis of gluten-sensitive enteropathy (GSE), such as celiac disease and dermatitis herpetiformis.
    More Info
  • Helicobacter pylori (H. pylori) UREA Breath Test

    The urea breath test can be used to aid in the diagnosis of H pylori infection. The test can also be used to assess therapy when it is administered more than a month after completion of therapy.
    More Info
  • Transferrin Blood Test

    The Transferrin Blood Test is used to assess the body's ability to bind and transport iron in the blood and monitor liver function or nutritional status
    More Info
  • Gliadin Antibody Profile Blood Test, IgA and IgG

    A Gliadin Antibody Profile Blood Test, IgA and IgG is used in the detection of gliadin antibodies aids in the diagnosis and monitoring of certain gluten-sensitive enteropathies, such as celiac disease and dermatitis herpetiformis.
    More Info
  • Alpha-1 Antitrypsin Blood Test

    An alpha-1 antitrypsin blood test is integral in defining the cause of early-onset emphysema and liver dysfunction.
    More Info
  • Hepatitis C Antibody Blood Test with Reflex on Posit...

    Assess exposure to hepatitis C virus infection and tests blood safety.
    More Info
  • Stool Culture Test

    A Stool Culture Test detects the presence of disease causing bacterial organisms including Salmonella, Shigella, Campylobacter, and Enterohemorrhagic E coli in the stool and aid in the diagnosis of Typhoid Fever, Enteric Fever, Bacillary Dysentery, and Salmonella infection.
    More Info
  • Beta 2 Microglobulin Serum Test

    A beta 2 microglobulin serum test evaluates the severity and prognosis of multiple myeloma, chronic lymphocytic leukemia, or non-Hodgkin's lymphoma; detects kidney damage and distinguishes between glomerular and tubular kidney disorders.
    More Info
  • Toxic Metals Random Urine - Doctor's Data Test Kit

    The Urine Toxic Metals profile is a complete assessment of urine metal excretion. This test is useful for anyone undergoing heavy metal detoxification therapy, or who wants to assess current heavy metal exposure. Doctors often use this test for excretion of heavy metals via heavy metal detoxification therapy.
    More Info
  • Liver Profile #3 Extreme Blood Test Panel

    A Liver Profile #3 Extreme Blood Test Panel includes Hepatic-7 Panel + GGT, LDH, Total Cholesterol plus PT, CBC's, AFP, and Ferritin, plus Acute Hepatitis Panel.
    More Info
  • Toxic Metals 24-Hour Urine -Doctor's Data Test Kit

    The Urine Toxic Metals profile is a complete assessment of urine metal excretion. This test is useful for anyone undergoing heavy metal detoxification therapy, or who wants to assess current heavy metal exposure. Doctors often use this test for excretion of heavy metals via heavy metal detoxification therapy.
    More Info
  • Celiac Disease Comprehensive Antibody Profile Blood ...

    The celiac disease comprehensive antibody profile blood test aids in the diagnosis of gluten-sensitive enteropathies, a disease of the intestinal tract.
    More Info
  • Comprehensive Stool Analysis plus Parasitology x3 (C...

    This CDSA/P test is performed to identify abnormal intestinal microflora, but does not directly assess abnormal digestion/absorption, inflammation or other specific aspects of gastrointestinal health.
    More Info
  • Parasite Examination (Malaria) Blood Test

    A parasite examination blood test is used to establish the diagnosis of Plasmodium or other parasitic infection; diagnose malArial parasitic infestation of blood; evaluate febrile disease of unknown origin.
    More Info
  • Hepatitis B Core Antibody Blood Test, IgM

    A Hepatitis B Core Antibody Blood Test, IgM, measures HBcAb which is an antibody produced in response to the core-antigen, a component of the Hepatitis B virus.
    More Info
  • Gastrin Blood Test

    The Gastrin Blood Test is used to detect an overproduction of gastrin, to help diagnose Zollinger-Ellison syndrome and G-cell hyperplasia, and to monitor for recurrence of a gastrin-producing tumor (gastrinoma).
    More Info
  • Hepatitis C Virus (HCV) Blood Test, Quantitative, Re...

    A HCV Blood Test is used to determine the number of international units (IU) of hepatitis C virus (HCV) RNA per milliliter serum or plasma in known HCV-positive patients.
    More Info
  • Giardia Lamblia Stool Test, EIA

    The Giardia Lamblia Stool Test, EIA is used in the Rapid detection of the Giardia lamblia parasite.
    More Info
  • Helicobacter pylori (H. pylori) Antibodies Blood Tes...

    The H. pylori antibodies blood test aids in the diagnosis of acute and chronic H. pylori infections in patients with gastric and duodenal disease.
    More Info
  • Casein Allergy Blood Test, IgE

    The Casein Allergy Test is qualitative allergen specific IgE blood test to determine if you are suffering from a hypersensitivity to Casein, the main protein in milk.
    More Info
  • Prealbumin Blood Test

    This Prealbumin Blood Test evaluates protein malnutrition, total parenteral nutrition, and liver dysfunction.
    More Info
  • Inflammatory Bowel Disease (IBD) Profile Blood Test

    The IBD blood test is used to rule out Crohn's disease and ulcerative colitis.
    More Info
  • Potassium Blood Test, RBC

    The Potassium Blood Test, RBC provides a measurement of intracellular Potassium levels which can indicate deficiency sooner than an ordinary blood test.
    More Info
  • Hepatitis A Antibody Blood Test, Total

    A Hepatitis A Antibody Blood Test total measures both IgG and IgM forms of the antibodies associated with Hepatitis A. Although the test measures both IgG and IgM antibodies looking for past and recent exposure, test results report a total and do not differentiate between the two forms.
    More Info
  • Urine Toxic and Essential Elements Test Kit - Doctor...

    The Urine Toxic and Essential Elements Test Kit reports 20 toxic elements and 18 nutritional elements in the urine. Assessment of toxic metal retention and essential element status. Monitors detoxification therapy
    More Info
  • Calprotectin Stool Test

    A calprotectin stool test is used to diagnose inflammatory bowel disease (IBD), including Chron's disease and ulcerative colitis, or to differentiate IBD from irritable bowel syndrome (IBS).
    More Info
  • Candida Antibodies Blood Test, IgG, ELISA

    This Candida Antibodies Blood Test is used in the detection of IgG antibodies to Candida albicans
    More Info
  • Oxalate Urine Test, Quantitative, 24-Hour

    That Oxalate Urine Test looks for the presence of certain toxic substances in the intestinal tract.
    More Info
  • Clostridium difficile Toxin B Stool Test, Qualitativ...

    The clostridium difficile toxin B stool test is useful in diagnosing clostridium difficile toxin B.
    More Info
  • Celiac Disease HLA DQ Association Blood Test

    The celiac disease HLA DQ association blood test is used in support of the diagnosis of celiac disease.
    More Info
  • Helicobacter pylori (H. pylori) Antibodies Blood Tes...

    A Helicobacter pylori (H. pylori) Antibodies Blood Test, IgA is used to diagnose H pylori infection in patients with duodenal disease and for monitoring the eradication of H pylori following antimicrobial therapy; identify the small percentage of H pylori-infected patients who fail to mount a systemic IgG response and demonstrate IgA antibodies only and for those patients who have chronic mucosal infections.
    More Info
  • Amylase Urine Test, Random

    Amylase urine test, random is used to diagnose pancreatitis or other pancreatic diseases.
    More Info
  • Liver-Kidney Microsomal (LKM) Antibodies Serum Test

    The liver-kidney microsomal (LKM) antibodies serum test is used in the detection of LKM-1 antibodies is an aid in the diagnosis of autoimmune hepatitis, type 2 (AIH-2).
    More Info
  • Comprehensive Stool Analysis (CDSA) - Doctor's Data ...

    This CDSA test is performed to identify abnormal intestinal microflora but does not directly assess abnormal digestion/absorption, inflammation or other specific aspects of gastrointestinal health.
    More Info
  • Celiac Disease Profile II Blood Test

    A celiac disease profile II blood test aids in the diagnosis of gluten-sensitive enteropathies, a disease of the intestinal tract.
    More Info
  • Trypsin Serum Test

    A Trypsin Serum Test is used to screen for pancreatic insufficiency.
    More Info
  • Hepatitis Be Antigen Blood Test

    A Hepatitis Be Antigen Blood Test is a differential diagnosis, staging, and prognosis of hepatitis B infection.
    More Info
  • Ova and Parasites, Concentrate and Permanent Smear, ...

    This Ova and Parasite Stool Test is used to establish the diagnosis of parasitic infestation. Concentration of material and examination of specimen for ova and parasites by conventional iodine/saline and trichrome staining. This will not detect Cryptosporidium, Cyclospora cayetanensis, or Microsporidium.
    More Info
  • Red Blood Cell (RBC) Elements Blood Test - Doctor's ...

    A RBC Elements Blood Test provides a reliable means of identifying short-term toxic element exposure and evaluating intracellular mineral nutrient status. Results help to quickly pinpoint imbalances underlying conditions such as chronic fatigue, depression, ADHD, and cardiovascular disease.  Note: This is a pre-paid shipping test kit that will be mailed and it requires a blood draw. Please Click Here to locate a lab for specimen collection.
    More Info
  • Hepatitis B Core Antibody Differentiation Blood Test...

    The Hepatitis B Core Antibody Differentiation Blood Test, IgG and IgM assesses Hepatitis B virus infection.
    More Info
  • Gastrointestinal (GI) Effects Comprehensive Stool Pr...

    The GI Effects Comprehensive Stool Profile is the stool test of choice for optimizing clinical value in managing gut health.
    More Info
  • Magnesium Urine Test, 24-Hour

    The Magnesium Urine Test measures the amount of magnesium (an electrolyte) in urine collected over 24 hours.  This test is used to evaluate and manage electrolyte problems in the body.
    More Info
  • Hepatitis Be Antibody Blood Test

    The hepatitis Be antibody blood test is a differential diagnosis, staging, and prognosis of hepatitis B infection.
    More Info
  • Endomysial Antibody Blood Test, IgA

    Tissue transglutaminase is the autoantigen recognized by endomysial antibody in celiac disease.
    More Info
  • Helicobacter pylori (H. pylori) Antibodies Blood Tes...

    The Helicobacter pylori (H. pylori) Antibodies Blood Test, IgM, is used to diagnose early H pylori infection in patients with gastric and duodenal disease.
    More Info
  • Fecal Fat Stool Test, Qualitative

    A fecal fat stool test, qualitative is useful in determining the presence or absence of excess fat in the stool. 
    More Info
  • Whole Blood Elements Kit - Doctor's Data Kit

    The Whole Blood Elements Kit is an assessment of element levels in whole blood is a valuable tool for identification of dietary adequacy, gastrointestinal, renal and endocrine functions, and excess or deficiency conditions.  Note: This is a pre-paid shipping test kit that will be mailed and it requires a blood draw. Please Click Here to locate a lab for specimen collection.
    More Info
  • Saccharomyces cerevisiae Antibodies (ASCA) (IgG) Ser...

    A Saccharomyces cerevisiae Antibodies Serum Test is intended to aid in the diagnosis of patients with Crohn's disease.
    More Info
  • NutrEval Plasma and Urine Test Plus Vitamin D - GENO...

    NutrEval FMV® provides a framework of core nutrients in 5 key areas: Antioxidants, B Vitamins, Digestive Support, Essential Fatty Acids, and Minerals plus Vitamin D.
    More Info
  • ION Profile with 40 Amino Acids, Blood - Genova Test...

    The ION Profile with 40 Amino Acids is an advanced nutritional analysis that offers insight into imbalances that may precede abnormal findings on standard laboratory evaluations. Note: This is a pre-paid shipping test kit that will be mailed and it requires a blood draw. Please Click Here to locate a lab for specimen collection.
    More Info
  • GI Pathogen Profile, multiplex PCR Kit - Doctor's Da...

    The GI Pathogen Profile, multiplex PCR Kit is used to test for the presence of viral infections or to differentiate between possible diarrheagenic strains of E. coli.
    More Info
  • Amino Acids 24-Hour Urine - Doctor's Data Test Kit

    The amino acid (AA) 24-hour urine aids in the identification of dietary protein adequacy and amino acid balance, gastrointestinal dysfunctions, forms of protein intolerance, vitamin and mineral deficiencies, renal and hepatic dysfunction, psychiatric abnormalities, susceptibility to inflammatory response and oxidative stress, reduced detoxification capacity and many other inherent and acquired disorders in AA metabolism.
    More Info
  • Amino Acids FMV - Doctor's Data Test Kit

    The amino acid (AA) FMV test aids in the identification of dietary protein adequacy and amino acid balance, gastrointestinal dysfunctions, forms of protein intolerance, vitamin and mineral deficiencies, renal and hepatic dysfunction, psychiatric abnormalities, susceptibility to inflammatory response and oxidative stress, reduced detoxification capacity and many other inherent and acquired disorders in AA metabolism.   
    More Info
  • White Blood Cells (WBC) Stool Test

    A WBC test or fecal leukocytes stain is ordered to assist in differential diagnosis of diarrheal disease and looks for white blood cells in stool.
    More Info

Trusted, Secure, & Confidential


Today's Offers