Situations in which self test kits may be accurate

Performance of self-tests is poorer in a number of situations. Results may not be accurate.
• In cases of recent HIV infection, during the test’s window period.
• In people with diagnosed HIV who are taking HIV treatment. These tests are not a reliable way to confirm that you still have HIV infection.
• In people who are taking post-exposure prophylaxis (PEP). If they acquired HIV, they may have a delayed antibody response, extending the window period.
• When test instructions have not been correctly followed – for example not enough sample has been collected.