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A member asked:

Tested negative for ankylosing spondylitis by pcr blood test. apparently pcr is the most sensitive test. does this mean i definitely don't have as?

A doctor has provided 1 answer

No blood test for AS: If you are referring to the hla-b27, this is not a diagnostic test. You can still have as but it is less likely. This is a conversation for your doctor, however.

Dr Rothschild and another doctor agreed

Answered 1/6/2015

4.9k views

Thank

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People also searched for:

I'm confused-wouldn't negative PCR blood test for ankylosing spondylitis rule it out? Is this not the test for it?
Few cases of iritis. Had hla-b27 blood test done. One was positive, one was negative (by pcr). Since PCR is most sensitive, does this mean i'm clear?
Can you have ankylosing spondylitis with a negative antibody blood test?
If blood test by PCR was negative for hla b27, does this mean i definitely don't have it? (one other blood test was positive; not sure of the type).
I had a blood exposure in April 2021. I took a 4th gen HIV test in July, August, September and October. I also took a HIV RNA by PCR test in October. All were negative. Are these considered conclusive or should I retest? I tested neg for HCV too?

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