With a Pos Riba, you were definitely exposed to Hep C at some time in your past.
The neg Nat (Nucleic Acid Test) means your immune system fought off the virus
without treatment. That is GREAT news for you. Anyone going through treatment
would give up an organ for that. you are left with antibody to Hcv. This is NOT
a health concern but you will not be able to donate blood. You will have the
antibody for a LONG time, maybe the rest of your life, though some eventually
lose the antibody after 20 years or so.
relax. trinity posted some good info. i agree looks like you may have been one of the lucky few that have contact with the disease but their body was able to fight it off.
Best of luck with the follow-up test
NAT allows very small amounts of genetic material, such as DNA and RNA, to be detected by a process of massive copying of a gene fragment. The systems permits highly sensitive detection of HCV RNA. With the NAT being negative, and the RIBA being positive it looks like you were exposed to the virus but your immune system fought if off. When that occurs you are left with antibodies only but they pose no health problem and you can't transmit HCV because you don't have the active virus.
More than likely the retest will be an HCV RNA by PCR and again, NAT was negative so the PCR will be negative too.
Trinity