Hello, thanks for using health care magic.
The validity of HIV test
results depends on the type of test that was done and on the duration following exposure.
Rapid diagnostic tests become positive only after sero-conversion (when the body has produced enough antibodies
) and that usually may take up to 3months extending to 6 months in some cases. Repeated testing is usually needed months later to confirm the results and to give time for sero conversion. Rapid diagnostic tests have a high sensitivity and unless there have been an exposure, a negative results is usually valid unlike a positive result that needs to be confirmed.
Another type of tests is the ELISA
techniques which detect both the antigen and antibodies and are more sensitive and could be use for diagnosing the infection as early as two weeks after exposure.
A negative test result is a good footing but it is necessary to do a confirmatory test later.
Best regards and hope this helps you.
Dr. Achuo A. M.