20. How can I tell if my HIV treatment is working? A person can tell if his or her HIV treatment is working by looking at the results of the blood tests that measure viral load and the health of the immune system An HIV treatment regimen is considered effective if it’s able to control HIV to the point that the virus is undetectable or the CD count is close to or within the normal range Even when HIV treatment is effective, the virus is still present, but the viral load level is low enough that HIV is considered controlled