Blood tests to assess liver
  functioning
Test for antibodies produced
  by body to fight virus
  - Enzyme Immunoassay  (EIA)
  - Negative result sufficient
    for a low risk individual
Recombinant immunoblot assay
  (RIBA)
  - Recommended for individuals
    with
    - Positive EIA
    - High risk profile
    - Positive result should
      be repeated to protect
      against false positives
  - HCV RNA Polymerase Chain
    Reaction) (PCR)
    - Tests for the presence
      of the HCV virus
    - Measures the viral load
    - Positive HCV RNA (by PCR)
      confirms infection
    - Single negative does no
      rule out viremia