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HIV Antibody Screening Test (Serum/Plasma)

Published: August 9, 2026Updated: August 16, 2026

This test detects antibodies to the human immunodeficiency virus (HIV), which your body produces in response to the virus. It helps determine if you have been exposed to HIV.

Quick summary

["This screening test is the first step in checking for HIV infection."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
14092-1
Short code
HIV1 Ab Ser Ql IF
Synonyms
HIV1 Ab Ser Ql IF
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
if
CPT
86701
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

What Does This Test Measure?

The test looks for HIV antibodies in your blood or plasma. These antibodies are proteins your immune system makes after exposure to HIV. If present, they indicate past or current infection.

How Is the Test Performed?

A blood sample is taken from a vein, usually in your arm. The sample is then sent to a lab for analysis using an immunoassay method to detect HIV antibodies.

Why Is This Test Important?

Early detection of HIV is crucial for managing the infection and preventing complications. This screening is often recommended as part of routine health checks or if you have risk factors for HIV.

What Are Common Risk Factors?

You may be advised to get this test if you have unprotected sexual contact, share needles, or have other risk behaviors. Some healthcare providers recommend testing for everyone aged 15 to 65 at least once.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

This test plays a critical role in public health by identifying HIV infections early. Early diagnosis allows for timely medical intervention, including antiretroviral therapy (ART), which can significantly improve health outcomes and reduce the risk of HIV progression to AIDS. It also helps prevent the spread of the virus by enabling treatment and counseling.

Short name

HIV Antibody Screen

Frequently asked questions

How soon after exposure can I get tested?
HIV antibodies typically appear within 2 to 8 weeks after exposure, but some people may not develop detectable antibodies for up to 3 months. For immediate or high-risk situations, some healthcare providers may recommend testing sooner.
What if my test results are positive?
A positive result means you likely have HIV. You will need confirmation through a follow-up test, such as a confirmatory antibody test or viral load test. Your healthcare provider will guide you on next steps, including treatment options and support services.
Can I still get tested if I have symptoms of another illness?
Yes, you can still get tested for HIV even if you have symptoms that might suggest another condition. HIV can sometimes cause flu-like symptoms early on, but these symptoms can also be from other illnesses. Testing is safe and doesn’t affect your health.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy