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ANA question for Dr. V.
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lisaisweavebee posted:
Whenever I have been tested for ANA my results always come back as 4.6 or 2.3 kind of a result and I notice others here will say their results are in a ratio format( i.e. 1: 320).

Is one method of ANA more reliable than another? Why the different methods?

Thanks!

Lisa
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lisaisweavebee responded:
And what does a patient believe when one blood sample is tested both ways and is positive by EIA but negative by IFA?

Thanks for any insight!!

Lisa
 
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R Swamy Venuturupalli, MD, FACR replied to lisaisweavebee's response:
Lisa, this is a good question. In general the ana test is most accurate when done by immunofluorescence ( IF). Recently, i posted about this issue. Please see the link below.

http://forums.webmd.com/3/lupus-exchange/forum/2789
 
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lisaisweavebee replied to R Swamy Venuturupalli, MD, FACR's response:
Thank you!!

Lisa


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