What is the next step if I have a confirmed positive anti-hcv test?

Confirm hep c. A positive antihep c test could mean you have hepatitis c or could be a false positive. Pcr testing would confirm whether one really has the virus. If the PCR is positive, one has hepaititis c. If the PCR is negative and has no hep c risk factors then the antihcv test was likely a false positive.
Check a viral load. The first test for hepatitis c is an antibody test. The next is a test for the virus itself, called a viral load or hcv RNA test. If the virus is detected, this person has chronic infection. But 25% of people will spontaneously clear the infection, so hcv antibody does not equal chronic infection. If chronic hepatitis c infection is found, see a specialist for next steps.