Calprotectin

For a brief introduction and guide to abbreviations, see Laboratory Tests: General Remarks.

Analyte [material]

Calprotectin [stool]

Reference range, target level, or decision threshold

<50 microg/g

Interpretation of results

>250 microg/g: IBD, GI infections, GI tract malignancies, colonic diverticulosis, use of NSAIDs

50-250 microg/g: Cirrhosis, microscopic colitis, celiac disease and other enteropathies, PUD, gastritis, reflux esophagitis, food allergy, small intestinal bacterial overgrowth, use of PPIs