An HIV test will determine if HIV or AIDS antibodies are present in the blood. Anyone who suspects they may have been exposed to HIV or AIDS should be tested. Testing is done through a blood sample and is available in a doctor's office, health clinic or at home through a kit from a testing lab. To learn more about how HIV and AIDS tests work, please read The Guide to HIV/AIDS Testing and our interviews with HIV test experts Tracey Powell and Raymond Ganoe.