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What Causes False Positive Hep C Test

Here's a taste of what TheBody.com has to offer on this topic:
Ask the Experts

Hepatitus c and false positive.

I donated blood and received a letter saying positive for hep c(anti-hcv). They performed the riba test-result indeterminate.Then performed hcv nat test which was negative. I take tramadol hcl up to 400mg daily and occasionaly take salsalate 500mg....
Barbara McGovern, M.D.

Response from Barbara McGovern, M.D.

Tufts University School of Medicine
...Like every test, sometimes you get a false positive. Since you are at low risk and only got a HCV test because of a blood donation, your test results in the aggregate strongly suggest Read more »

Chances of False Positive Hep C test?

HeyMy boyfriend and I have been together for 2 years and at the beginning when we were dating, he... Read more »

Double false positive HepC HIV

I recently tested positive for HepC but then negative per RIBA and PCR. Then I tested positive for... Read more »
Articles
The Body PRO

Early Expiration May Be Cause of Unusually High False-Positive Rates on OraQuick Rapid HIV Tests, Study Finds

...December 2007, who had either an initial HIV negative result or a preliminary positive result on the test that was proved to be a false positive after confirmation with an IFA [immunofluorescent assay] or a Western Blot. 1 Shelley... Read more »
AIDS InfoNet

Hepatitis C and HIV

... What Is Hepatitis C? How Is It Diagnosed? How Is Hep C Treated? Can Hep C Be Prevented? Hep C and HIV Together The Bottom Line Read more »
Canadian AIDS Treatment Information Exchange

HIV and Hepatitis C Co-Infection

... Are you HIV positive and newly diagnosed with hepatitis C (Hep C)?Do you have one virus and think youmight be infected with the other? If so, this brochure answers somebasic questions Read more »
U.S. Centers for Disease Control and Prevention

Overview of False-Positive Oral Fluid Rapid HIV Tests

...(NYC) from March 2005 through May 2008. STD clinics in NYC using the oral fluid rapid test reported two episodic increases in false positive test results over the past four years. Because of the second episode of increases in false-positives... Read more »
Connect With Others

I tested Positive, My boyfriend didnt, False positive?

Posted by ruraltgwoman, 1 Reply
I tested positive for HIV on 12/10. My boyfriend just got his results back today 12/21. His results came back negative. We have been having unprotected sex for the last 4 years and have been together for 5. I have only been wih him during that... Read more »

Positive for Hep C and now worried about HIV

Posted by Worrywart28, 2 Replies
...she said this is normal because they have to mail that test. Still, that worries me. She also told me i tested "reactive" to Hepatitis C. My range was very low though. Anything over 1.00 is considered reactive but because mine was 1.32 she said... Read more »

Reasons for a false-positive?

Posted by Anonymous, 1 Reply
...genital herpes but haven't had an outbreak in quite a long time (when I had them, they were always quite tame). My mother has hep C but it's not certain whether I do or not -- could this also cause a false-positive test? Thank you! Read more »

What things cause a false positive?

Posted by Anonymous
.......on a rapid (oraquick) test? Are their certain medical conditions, medicines, etc that cause these false positives??? Just wodering why they happen? Read more »