Anti-tTG IgG and anti-DGP IgG should be performed in patients in whom low IgA or selective IgA deficiency is identified. Anti-DGP (IgA and IgG) should be combined with the anti-tTG IgA and IgG tests when screening children <2 years of age for Celiac disease.
3 mL plain blood
< 7 EliA U/mL Negative
7 - 10 EliA U/mL Indeterminate
> 10 EliA U/mL Positive
Range 2 to 7 working days
Batch tested, once/week
Diagnostic testing should be done with patients on gluten-containing diets.
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