HIV-1/HIV-2 Rapid Screen
Does this test have other names?
Rapid HIV antibody test
What is this test?
This test looks for HIV infection in your blood or saliva.
HIV is the virus that causes AIDS. About 20% of people who are infected with HIV don't
know it because they may not have symptoms. HIV comes in two forms: HIV-1, which is
found worldwide, and HIV-2, which is mainly found in western Africa, although it has
spread to the U.S.
This test is one of several tests that look for HIV infection. Some of these tests
take a few days for results, but rapid HIV tests can give your results in about 20
minutes. Getting an early diagnosis of HIV is important because you can start treatment
early and also take steps to keep from spreading the virus to others.
Why do I need this test?
You may have this test if your healthcare provider suspects that you have HIV infection.
These are signs and symptoms of HIV infection:
You may also have this test if you are at risk for HIV. The CDC recommends HIV testing
for these groups:
People who have had unprotected sex with multiple partners, with men who have sex
with men, or with strangers
People who have had sex for money or drugs
People who inject drugs or steroids or share their injecting equipment with others
People who have been diagnosed with hepatitis, tuberculosis, or a sexually transmitted
People who have had unprotected sex with anyone who might have the above risk factors
You may also have this test if you are pregnant or plan to become pregnant.
Some people who aren't in a high-risk group choose to be tested just to be sure they
don't have HIV.
What other tests might I have along with this test?
Your healthcare provider may also order tests for other STIs. If the results of the
rapid HIV test are positive, your provider will order another test to confirm the
What do my test results mean?
Many things may affect your lab test results. These include the method each lab uses
to do the test. Even if your test results are different from the normal value, you
may not have a problem. To learn what the results mean for you, talk with your healthcare
Rapid tests for HIV change color if they detect antibodies that your immune system
has created against HIV infection.
Normal results are negative, meaning that no antibodies were found and that you may
not be infected with HIV. Most people who become infected with HIV will develop antibodies
to the virus within 2 months. During this time, you may have HIV but this test can't
detect it. You may want to repeat the test more than 3 months after your possible
exposure if your results are negative.
A positive result means that HIV antibodies were found and that you may have HIV.
You may get a false-positive result. This means there was an error in your test.
How is this test done?
Rapid HIV testing requires either a sample of blood drawn by putting a needle into
a vein in your arm or pricking a finger. One type of test can be done using a sample
of your saliva, which your healthcare provider gets by rubbing a special swab against
Does this test pose any risks?
Taking a blood sample with a needle carries risks that include bleeding, infection,
bruising, or feeling dizzy. When the needle pricks your arm, you may feel a slight
stinging sensation or pain. Afterward, the site may be slightly sore.
What might affect my test results?
Having the test too soon after you are infected with HIV may give you a false-negative
result. This means there was an error in your test.
How do I get ready for this test?
You don't need to prepare for this test.