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false possitive
Apr 3, 2014

what can cause a false possitive test result for hcv?

Response from Dr. Taylor

There are several reasons for a positive HCV antibody test in the absence of HCV RNA, the virus itself.

You may have been exposed to hepatitis C, and spontaneously cleared the infection. In this case the hepatitis C antibody always remains positive, as a footprint indicating past exposure, but you do not have chronic hepatitis C infection.

If you are from a part of the world where hepatitis C infection is rare, there is a higher chance of a false positive antibody result. There may be false positive results due to technical errors in checking the hepatitis C antibody. Sometime the hepatitis C antibody may cross-react with antibodies for other diseases, such as autoimmune diseases (possibly what you have), giving a false positive result.

If unsure, get checked for the hep C virus itself, HCV RNA by PCR



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