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IgA Epidermal Transglutaminase (Transglutaminase, TG3) Antibody Level

Test Name
IgA Epidermal Transglutaminase, (eTg)/Transglutaminase 3 (TG3) Antibody Level By ELISA

Ordering Recommendation
For assessing disease activity in dermatitis herpetiformis

Methodology
Enzyme-linked immunosorbent assay (ELISA)

Performed
Typically performed weekly, varies dependent upon specimen number requests

Reported
7-14 days

New York State Department of Health (NYSDOH) Approval Status
This test is not New York State DOH approved

Information Required to Submit with Order
Completed Immunodermatology Laboratory requisition form and copies of both sides of insurance cards or completed billing information

CPT Code(s)
83516

SPECIMEN REQUIREMENTS

Collect Blood
Plain red top tube or serum separator tube

Specimen Preparation
2 mL serum separated from blood into serum vial provided in kit (Minimum needed: 0.5 mL)

Storage/Transport Temperature
Store refrigerated/transport ambient temperature

Conditions with Disclaimer for Potentially Anomalous Results
Hemolyzed or lipemic serum specimens, whole blood

Stability
Ambient: 7 days

Refrigerated: 14 days

Frozen: Indefinitely