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 IgG test when screening children <2 years of age for Celiac disease.
3 mL plain blood
<10 U/mL Negative> =10 U/mL Positive
Range 2 to 3 working days
Mondays to Fridays
Diagnostic testing should be done with patients on gluten-containing diets.
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