TISSUE TRANSGLUTAMINASE (TTG) ANTIBODY, IgA, SERUM

Additional Codes

Software	Test Code
Label Text	TTRIA
EPIC	LAB723

Performing Laboratory

NorDx Laboratories

Useful For

First-order screening for celiac disease, for identifying individuals who should be subjected to biopsy for celiac disease, for screening for dermatitis herpetiformis in conjunction with EMA antibody test, and for monitoring adherence to gluten-free diet in patients with dermatitis herpetiformis and celiac disease

Method Name

Enzyme Linked Immunosorbent Assay (ELISA)

Reference Values

Negative: < 4 units

Weak Positive: 4 – 10 units

Moderate to Strong Positive: >10 units

Days and Times Test Performed

Monday through Friday

Report Available

1 Day

Specimen Type

Serum

Preferred Container

Serum Separator Tube (SST)

Preferred Volume

Serum: 1 mL (Serum Separator Tube (SST))

Minimum Volume

Serum: 0.5 mL (Serum Separator Tube (SST))

Specimen Collection and Handling

1. Spin specimen, separate from clot and send refrigerated.

2. If specimen will not arrive within 2 days of draw, send specimen FROZEN in plastic vial on dry ice.

Specimen Stability Information

Specimen Type: Serum

Frozen: 3 Months

Refrigerated: 2 Days

Must be spun/separated within: 2 Hours

Add On Capable

Yes

Advance Beneficiary Notice Requirements

No ABN Required

CPT Code Information

CPT Code	CPT Description	CPT Disclaimer
86364	Mononuclear cell antigen, quantitative (eg, flow cytometry), not otherwise specified, each antigen.

Keywords

CELIAC

Performing Laboratory Location