|follow up q
Oct 16, 2006
Dear Bobby Bob,
You answered a q for me yesterday regarding hep c testing and were very kind and caring, as always. I had the two neg riba tests at 15 weeks and 35 weeks after reactive screening tests with a 1.0 score.
My final q is this : Do the neg riba tests mean I have never been exposed to Hep C or I was exposed and cleared the virus?
Bobby Bob, I will never bother you with any more qs. My only interest will be in reading this forum and contributing to your foundation.
| Response from Dr. Frascino
Hepatitis C EIA (enzyme immunoassay) used for screening has a low positive predictive value and high false-positive rate in low-prevalence populations. Low-prevalence populations include blood donors, those without known risk factors for HCV and those with normal liver function tests. In these cases, a reactive (positive) EIA needs to be confirmed with a RIBA (reverse immunoblot assay, a "Western Blot" type test). Newer RIBAs detect antibodies to each of the HCV proteins (core, NS2, 3, 4 and 5) in a nitro-cellular strip format. A negative RIBA means you have never been exposed to the virus.
Hope that helps clarify things for you.
Get Email Notifications When This Forum Updates or Subscribe With RSS
- What Is The Difference Between Razor Burn And Herpes On The Vagina?
- What Is Stage 3 Hpv?
- What If You Are Not Cured After Taking Bacterial Vaginosis Medications?
- What Causes Shingles To Flare Up?
- Ways To Heal Faster From Herpes
- Is Using A Condom A Guaranteed Way To Prevent Genital Herpes?
This forum is designed for educational purposes only, and experts are not rendering medical, mental health, legal or other professional advice or services. If you have or suspect you may have a medical, mental health, legal or other problem that requires advice, consult your own caregiver, attorney or other qualified professional.
Experts appearing on this page are independent and are solely responsible for editing and fact-checking their material. Neither TheBody.com nor any advertiser is the publisher or speaker of posted visitors' questions or the experts' material.