Coeliac Screen

EPIC

Coeliac Screen (TTG) (IgA included)

Section

Immunology

Clinical indications

IgA antibodies to tissue transglutaminase. If positive, endomysial antibodies are automatically done by lab to confirm. High positive predictive value for coeliac disease. May be falsely negative if IgA very low (included in test). If IgA deficient then send for IgG TTG to Royal London

Specimen requirement

0.5ml serum / serum gel. Serological assays may be affected by icteric/lipaemic/haemolysed samples. These should be avoided if possible

Dispatch and handling instructions

Not applicable

Turnaround time

8 days

Synonym

Not applicable

Is it IS0 15189 accredited?

Yes