Keyword: blood test

Which blood tests should I have to screen for celiac disease?

You should have both tTG-IgA and total serum IgA tests to screen for celiac disease. As long as you produce IgA (total serum IgA confirms you do), tTG-IgA is 98% accurate in measuring elevated antibodies. If you are IgA deficient, or if there is some other equivocating factor to potentially compromise the blood test, then… Read more »

(Updated .)

I had the Antibody Array 3 Wheat/Gluten Proteome Sensitivity & Autoimmunity blood test. Is this the right test to diagnose celiac disease?

No, you should have both the tTG-IgA and total serum IgA tests to screen for celiac disease. As long as you produce IgA (total serum IgA confirms you do), tTG-IgA is 98% accurate in measuring elevated antibodies. If you’re IgA deficient, or if there is some other equivocating factor to potentially compromise the blood test,… Read more »

(Updated .)

Can you confirm celiac disease from only a blood test?

Never, in fact. Other variables must be part of a diagnosis. New guidelines in 2011 allow for diagnosis without a biopsy, but only in very rare cases. In these rare cases at least one of the genes must be present, both tTG and EMA blood tests must be more than 10x normal, and there must… Read more »

(Updated .)

Are blood tests reliable for infants?

Blood tests aren’t always accurate in children with symptoms younger than three years of age. Children often must have been eating wheat- or barley-based cereals for some time, up to one year, before they generate an autoimmune response to gluten that shows up in testing. A pediatric gastroenterologist should evaluate young children who are experiencing… Read more »

(Updated .)