Evaluates immunological imbalance specific to gastrointestinal tract inflammatory disease activity. Calprotectin is effective in distinguishing IBD, IBS and gastrointestinal neoplasm. Eosinophil Protein X reflects IgE-mediated inflammation. Fecal EPX elevations can be associated with several conditions including IBD, IgE-mediated food allergies, parasite or worm infections and collagenous colitis.