Also knowm as: HCV, Hep C.

This test is used for detecting antibodies to Hepatitis C virus. Since a person with past infection will have a life long antibody response, confirmed positive antibody tests mean that at the person had been exposed to the virus at one time or another. These tests are extremely effective in ruling out HCV. The most up to date EIA is capable of antibody detection as early as six-eight weeks. Though a negative test at this time can be extremely useful, it is best to wait about three months to avoid the need for a follow up test.