Sea
Senior Member
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- 1,286
- Location
- NSW Australia
My IgA is low (0.5) so I worry that a lot of the blood testing for coeliac will be inaccurate. I had a negative on the coeliac test my GP did, but it is IgA based. I tried to get an IgG test but GP said no, that the IgA test result was okay because my IgA was low but not deficient. Don't know if that's right or not. I'm going to ask for the biopsy but I doubt that he is going to agree - despite my gut symptoms which he is ignoring.
Are there any other private tests accurate for coeliac / gluten intolerance, not based on IgA?
Enterolab does a faecal fat absorption test that's supposed to show villi damage, presumably an alternative to a biopsy?
What was the lab reference range for IgA? I have read that the IgA antibody test is fine unless your IgA is less than 50% of the lowest number in the reference range. IgG antibody testing is an option too. Even if all tests come back normal though it is really only the biopsy that can give you a definite answer (and even then only if they know what they're doing and take enough samples. It can still be missed with only 1 or 2 samples).
The Enterolab test is not recognised by a lot of doctors, I don't know whether it is accurate or not.