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Colon (Intestine)

Your colon (large intestine) removes water, salt, and nutrients, while forming stool. It is coated by billions of bacteria that live in a healthy balance with your body. When this balance is off, the complete colonic environment can be altered, opening the door for metabolism issues, yeast growth, impaired immunity, and even cancer. Manage your gut health by understanding it. Order from a suite of Walk-In Lab online tests to understand the health of your colon and your entire body. Thank you for browsing our selection of Colon/Intestine blood tests and panels. Shop additional Digestive System Tests confidentially and order online without insurance or a doctor's note.

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

Home Test Kits

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 AZ, NY, NJ and RI.

  • 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. 
  • 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.
  • Toxic Metals 24-Hour Urine -Doctor's Data Test Kit

    The Urine Toxic Metals, 24-Hour Test Kit evaluates exposure to potentially toxic elements and monitors metal detoxification therapy's effectiveness in a urine sample over 24 hours.
  • Helicobacter pylori (H. pylori) UREA Breath Test

    The Helicobacter Pylori (H. pylori) Urea Breath Test detects H. pylori bacteria by measuring the carbon dioxide in a patient's breath after they consume a urea solution.
  • Occult Blood, Fecal, Immunoassay Test

    The Occult Blood, Fecal, Immunoassay Test detects blood hidden in a stool sample to help screen for colorectal cancer.
  • 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.
  • Potassium Blood Test, RBC

    March Special: Save 15% with coupon code HEALTHY24. The Potassium Blood Test, RBC provides a measurement of intracellular Potassium levels which can indicate deficiency sooner than an ordinary blood test.
  • Clostridium difficile Toxin B Stool Test, Qualitativ...

    The clostridium difficile toxin B stool test is useful in diagnosing clostridium difficile toxin B.
  • 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.
  • 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.
  • Urine Toxic and Essential Elements Test Kit - Doctor...

    The Urine Toxic & Essential Elements Test Kit evaluates exposure to potentially toxic elements and monitors metal detoxification therapy's effectiveness.
  • Potassium Urine Test, 24-Hour

    March Special: Save 15% with coupon code HEALTHY24. A 24-hour Potassium Urine Test is used to detect abnormal concentrations of potassium, including high potassium (hyperkalemia) and low potassium (hypokalemia).
  • Candida Antibodies Blood Test, IgG, ELISA

    The Candida Antibodies Blood Test, IgG, ELISA, detects antibodies the body produces in response to Candida albicans.
  • 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.
  • 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.
  • GI Pathogen Profile, Multiplex PCR Stool Kit - Docto...

    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.
  • 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.   
  • 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.

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