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IgG Anti-Tissue Transglutaminase

General information

Acts as a screening test for coeliac disease/dermatitis herpetiformis

Specimen transport: At room temperature

Repeat frequency: Only to monitor compliance with gluten free diet in IgA deficient patients

Special precautions: None

Laboratory information

Normal reference range: 0-14.9 kU/L

Volume and sample type: 7ml clotted blood

Method: Multiplex flow immunoassay

Turnaround time (calendar days from sample receipt to authorised result): Median - 2

Clinical information

Indications for the test: Suspected gluten sensitivity. This test is specific for coeliac disease, but a jejunal biopsy is recommended for confirmation.

Factors affecting the test: Becomes negative on gluten free diet

 

ICE reference: TTG (IGG)

 

(Last updated August 22nd 2018)