Blood donation can be tested for AIDS, because nowadays, blood is not used immediately after it is drawn, but has to go through many tests, including infectious disease screening, the most important ones include AIDS, syphilis, hepatitis B and C. Therefore, AIDS is the first test to be done after blood donation. This is a more sensitive method to rule out the presence of the AIDS virus in the blood. Therefore, after the blood donation, they will notify the donor if HIV is found, and if the donor is not notified for a long time, the blood is considered safe. If you are not sure, you can contact the staff at the blood bank and ask them to confirm that your results are okay.