Endomysial Antibody, IgA

Label Mnemonic:	EMAIGA
Epic code:	LAB8875
Order form:	Laboratory Requisition
Supply order:	Supply Order Form
Billing:	Billing Policies
CPT code:	86256

Specimen(s):

Serum

Collection Medium:

Red top tube 5 mL (Clot Activator)

Minimum:

Preferred Minimum: 1 mL serum in a red top tube
Absolute Minimum: 0.15 mL serum

Rejection Criteria:

Plasma. Severely lipemic, contaminated, or hemolyzed specimens.

Turn Around Time:

1-5 days upon receipt at reference laboratory

Reference Range:

Less than 1:10

Interpretive Data:

The endomysial antigen has been identified as the protein cross-linking enzyme known as tissue transglutaminase.

Comments:

Ordering Recommendation:
Acceptable single screening test for IgA-competent individuals with suspected celiac disease.
May aid in monitoring adherence to gluten-free diet in celiac disease confirmed patients.

Methodology:

Semi-Quantitative Indirect Fluorescent Antibody

Sample Processing:

Centrifuge at 3500 RPM for 5 minutes.
Transfer serum to a new screw cap transfer tube.

Sample Storage:

Store frozen.

Transport Instructions:

Place dry ice on top of specimen in Styrofoam container to maintain frozen temperature.

CPT Code:

86256