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Quick Question about iga and igg

robotcat

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robotcat Newbie
robotcat
Posted

How low does total iga or total igg have to be for it to actually invalidate negative blood tests?

GI doctor says I'm deficient in both and now wants to do a duodenum biopsy, but I looked online and doctor google indicates that true deficiency is more like a 0 result than just a very low one.

Is this just the GI doctor being very thorough in his testing and biopsy is likely to be negative too? I want to save myself from worrying about nothing.

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kareng Grand Master
kareng
Posted
8 hours ago, robotcat said:

How low does total iga or total igg have to be for it to actually invalidate negative blood tests?

GI doctor says I'm deficient in both and now wants to do a duodenum biopsy, but I looked online and doctor google indicates that true deficiency is more like a 0 result than just a very low one.

Is this just the GI doctor being very thorough in his testing and biopsy is likely to be negative too? I want to save myself from worrying about nothing.

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"Any level of IgA above 20 mg/dl should make the tTG-IgA test valid, regardless of age. "

 

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