HIV test
Also written: HIV Ag/Ab
What it measures
Looks for viral antigen and antibodies in blood.
Why it is ordered
Included in many routine panels, before certain procedures, and after possible exposure. Results are confidential.
How to prepare
No fasting. There is a window period after exposure when the test cannot detect infection — ask about timing if you are testing after a specific event.
Units
Dương tính / âm tính (mọi kết quả dương tính đều được khẳng định lại bằng bước thứ hai) — convert here
What to ask
- If I am testing after a specific event, how long should I wait
- Who has access to the result
- If positive, what is the next step
This page does not include reference ranges and does not say whether your number is high or low. Reference ranges differ between laboratories and between people — read yours on your own report, with your clinician.