Endomysial (EMA) Antibody (IgG) titer
Reference Values Describes reference intervals and additional information for interpretation of test results. May include intervals based on age and sex when appropriate. Intervals are Mayo-derived, unless otherwise designated. If an interpretive report is provided, the reference value field will state this.
Negative: <1:2.5 titer
Positive: > or =1:2.5 titer
Test Performed by: IMMCO Diagnostics, Inc.
640 Ellicott Street
Buffalo, NY 14203
The positive finding of the IgA class endomysial antibodies (IgA EMA) is consistent with dermatitis herpetiformis and/or celiac disease. If the disease is controlled by a gluten free diet, these antibodies will disappear. Repeat titrations for these IgA EMA can be used to monitor strict adherence to a gluten free diet.
Negative results for IgA class endomysial antibodies are not consistent with a diagnosis of dermatitis herpetiformis or celiac disease. The sensitivity of this test on the average is about 70% in dermatitis herpetiformis and almost 100% in untreated Celiac Disease. IgG-EMA is generally only significant in those individuals who are IgA deficient and thus cannot produce IgA-EMA.