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TISSUE TRANSGLUTAMINASE ANTIBODY, IGA WITH REFLEX TO ENDOMYSIAL ANTIBODY, IGA TITER BY IFA

Mnemonic

TTG IGA R

Synonym

TTG Reflex - EMA

Includes

Tissue Transglutaminase IgA ELISA and Endomysial Antibody, IgA Titer IFA and Interpretation

Specimen Collection Requirements

Collect

Serum, one gold (SST) top tube

View image for Supply Item Number - 101235

Handling

Allow to clot, centrifuge and separate serum from cells immediately. Pour into a plastic tube. Refrigerate at 2-8°C. Freeze at -20°C if specimen cannot be assayed within 48 hours.

Preferred Volume

1.0 mL

Minimum Volume

0.5 mL

Transport

Refrigerated (2-8°C) or frozen on dry ice

Rejection Criteria

Plasma, microbially contaminated, heat-treated or specimens containing visible particulate, grossly hemolyzed or lipemic specimens should be avoided

Stability

AFTER SEPARATION FROM CELLS: Ambient (20-25°C): 8 hours; Refrigerated (2-8°C): 48 hours; Frozen (at or below -20°C): 2 months

Testing Information

Performed

Mon, Wed, Fri

Reported

3-5 days

Method

Enzyme Linked Immunosorbent Assay/Indirect Fluorescent Antibody

Reference Values

Reference Values

Less than or equal to 19.9 units

Comments

If tTG IgA is 20 units or greater, then EMA titer will be added.

CPT Codes

83516 tTG- IgA, if reflexed add 86256 EMA titer

Last Updated: Thursday, January 5, 2017 03:41:43 AM


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