The new Alere Rapid HIV Test has very good accuracy in excluding HIV infection.
How Accurate Is The Rapid HIV Test?
If the test is done outside of the window period of 90 days, getting a negative rapid HIV test is able to confirm you have not been exposed to the HIV virus.
Occasionally the rapid HIV test can have a false positive result. This is when the test shows positive when you have not been infected with the HIV virus.
Occasionally the test can show an indeterminate result. This is when there may have been a fault in the test so it did not fully function as hoped.
Both false positive and indeterminate results are quite rare. For this reason all positive and indeterminate results will need to be clarified with an additional blood test to formally test using a pathology lab.