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Gastroenterology & Immunology Testing

Let us help you manage your gastrointestinal health. Get tested!


At Gastroenterology Atlanta, we offer the following diagnostic Gastroenterology & Immunology testing
in an effort to diagnose our patients GI issues and create a targeted plan to strengthen their immune
systems while restoring their gut health.


The GI Effects® Profiles are advanced stool tests that provide immediate, actionable clinical information for the management of gastrointestinal health. Utilizing cutting-edge technologies and biomarkers, these tests can reveal important information about the root cause of many common gastrointestinal symptoms such as gas, bloating, indigestion, abdominal pain, diarrhea, and constipation.

The GI Effects Profiles go beyond standard parameters for identifying gastrointestinal disorders. The profiles use the best of molecular, microscopic, and immunoassay approaches to evaluate anaerobes, parasites, firmicutes/bacteriodetes ratio, absorption, inflammation, and sensitivities.

We offer comprehensive testing for all parasites on every parasitology exam ordered. Testing incorporates a microscopic ova and parasite (O&P) exam, as well as 6 protozoan PCR targets, with the novel reflex Blastocystis spp. subtyping 1-9. A macroscopic examination for worms is included in the Gut Pathogen Profile and as an add-on to the GI Effects profiles.


The CDSA 2.0™ Profile with Parasitology evaluates digestion, absorption, and the microbiome. Parasites are evaluated using microscopic examination and EIA testing. Sensitivities are provided for treating pathogenic flora. The profile may be indicated for chronic GI symptoms and acute bowel pattern change


SIBO Profiles are non-invasive breath tests that capture exhaled hydrogen and methane gases following patient ingestion of a lactulose solution.

  • Measures the small intestinal bacterial overgrowth for patients suffering with bloating, diarrhea, nausea & abdominal fatigue.

  • Clinicians now have the option of a 2- or 3-hour SIBO assessment. The 3-hour SIBO profile provides insight into gas levels over a longer period of time, and is recommended for patients with slower gastrointestinal transit or constipation.


We offer a full line of serum allergy testing and assessment including IgG/IgE Foods, Inhalants, Molds, and Spices. Symptoms such as migraines, aching joints, fatigue, gastrointestinal disorders, and others have been linked to food sensitivity and environmental allergies.

  • IgG Food Antibodies is an ELISA test that provides insight into delayed reactions/sensitivities to specific foods. Additionally, the IgG Food Antibody Assessment includes information on implementing an Elimination Diet based on the patient test results.
  • IgE Food Antibodies Profile analyzes serum levels of total IgE antibodies for 19 combined foods and total IgE.
  • IgE Inhalants is a chemiluminescent test to evaluate serum IgE antibody levels to 14 regionspecific common pollens and environmental inhalants. It is an ideal test for patients with suspected environmental and/or seasonal allergies.
  • IgE Mold is a chemiluminescent test to evaluate serum IgE antibody levels to 15 molds. It is an ideal test for patients with suspected environmental allergies specific to molds.
  • IgG Spices utilizes ELISA technology to evaluate serum for levels of IgG and total IgE antibodies for 24 frequently used culinary herbs and spices. It is an ideal test for patients with suspected intolerance to spices and herbs.

Not sure which tests to take?

Schedule a Telehealth appointment with Dr. Lyday today to find out which GI tests are right for you.


Click on the following test topics to learn more about all the health testing offered at Gastroenterology Atlanta.

Take the guesswork out of your health. Schedule your health tests today!