Endomysial IgA Abs

• CPT Code: 86255
• LOINC: 31365-0
• Specimen Type: Red or SST
• Frequency: Setup: Mon-Fri; analytic time 2 days
• Instructions: 2.0 ml serum from red or SST. Min 1.0 ml for adults and 0.5ml for pediatric. Refrigerated.
• Text: The finding of IgA-EMA is highly specific for dermatitis herpetiformis or celiac disease. The titer of IgA-EMA generally correlates with the severity of gluten-sensitive enteropathy. Patients with mild gluten-sensitive enteropathy may have a negative result.
• Methodology: Staining of Rhesus Monkey Esophagus Substrate by Indirect Immunofluorescence Assay (IFA) for IgA Endomysial Antibodies (EMA).