The Celiac Disease Comprehensive Panel for Infants measures antibodies linked to gluten sensitivity and autoimmune activity. It includes tissue transglutaminase (tTG), deamidated gliadin peptide (DGP), and total IgA to support detection of early immune reactions. By identifying abnormal antibody patterns, this panel helps evaluate gluten intolerance, malabsorption, and celiac risk in infants.

The Calprotectin Stool Test measures calprotectin, a protein released during intestinal inflammation, to help distinguish inflammatory bowel disease (IBD) such as Crohn’s disease and ulcerative colitis from irritable bowel syndrome (IBS). Doctors order this test for patients with chronic diarrhea, abdominal pain, or rectal bleeding. Results provide valuable insight into gut health, disease activity, and the need for further testing or treatment monitoring.

The Saccharomyces cerevisiae IgA Antibodies Test detects IgA antibodies against baker’s or brewer’s yeast, often elevated in Crohn’s disease. This test helps distinguish inflammatory bowel disease from ulcerative colitis and other gastrointestinal disorders. Doctors use results with clinical evaluation and other markers to aid diagnosis, monitor disease activity, and guide ongoing management of digestive and autoimmune health conditions.

The ANCA Screen with MPO and PR3 with Reflex to ANCA Titer detects antineutrophil cytoplasmic antibodies linked to autoimmune vasculitis. By targeting myeloperoxidase (MPO) and proteinase 3 (PR3), this test helps evaluate conditions such as granulomatosis with polyangiitis or microscopic polyangiitis. It supports diagnosis, disease activity monitoring, and assessment of autoimmune inflammation.

The Saccharomyces cerevisiae IgG Antibodies Test measures IgG antibodies against baker’s or brewer’s yeast, often associated with autoimmune and gastrointestinal disorders. Elevated IgG levels are commonly linked to Crohn’s disease and may help differentiate it from ulcerative colitis. This test supports evaluation of immune response, gastrointestinal inflammation, and monitoring of conditions tied to yeast-related antibody activity.

The Lactoferrin Quantitative Stool Test evaluates stool for lactoferrin concentration to assess inflammation in the digestive tract. Increased levels are often linked to inflammatory bowel disease, including Crohn’s disease or ulcerative colitis, while low or normal levels suggest non-inflammatory conditions. This test provides insight into immune activity, gastrointestinal health, and systemic balance.

The Lactoferrin Qualitative Stool Test measures lactoferrin in stool to assess intestinal inflammation. Positive results may signal inflammatory bowel disease, including Crohn’s disease or ulcerative colitis, while negative results often suggest non-inflammatory conditions. This test supports evaluation of gastrointestinal health, immune activity, and disorders affecting digestive function.

The Clostridium difficile Toxin B Qualitative Test detects the presence of toxin B, a major virulence factor of C. difficile infection. This stool-based test helps identify active infection in patients with diarrhea, abdominal pain, or recent antibiotic use. Positive results support diagnosis of C. difficile–associated disease, which may cause colitis or severe gastrointestinal complications, aiding clinical evaluation and treatment decisions.

The Thiopurine Metabolites Test evaluates active metabolites of thiopurine drugs, including 6-thioguanine nucleotides and 6-methylmercaptopurine, to assess treatment effectiveness and safety. Elevated or low metabolite levels may indicate risk of toxicity, under-dosing, or non-adherence. This test provides critical insight for managing patients on immunosuppressive therapy, guiding personalized dosing, and monitoring long-term response.

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.

The Gliadin Deamidated Peptide IgA Antibody Test detects IgA antibodies against deamidated gliadin peptides, highly specific markers for celiac disease. Elevated levels indicate an immune reaction to gluten and may suggest intestinal damage. Doctors use this blood test to help diagnose celiac disease, evaluate unexplained digestive issues, or monitor adherence to a gluten-free diet. It is often ordered alongside tTG IgA and total IgA testing for accuracy.