HIV Antibody Screening and Confirmation (Serum/Plasma)
This test checks for antibodies to the human immunodeficiency virus (HIV), which your body makes in response to the virus. It helps determine if you’ve been exposed to HIV.
["Detects HIV antibodies to assess potential infection risk or exposure."]
Key facts at a glance
- LOINC
- 33807-9
- Short code
- HIV 2 IgG Ser Ql
- Synonyms
- HIV 2 IgG Ser Ql
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- CPT
- 82784
- 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 This Test Measures
The test looks for HIV antibodies in your blood or plasma. Antibodies are proteins your immune system produces after exposure to HIV. If present, they indicate past or current infection. This test is typically performed in two stages: a screening test followed by confirmation to ensure accuracy.
Why It’s Done
Doctors may order this test if you have risk factors for HIV (e.g., unprotected sex, shared needles, or exposure to infected blood), symptoms of infection, or if you’re part of a group at higher risk. It’s also used as part of routine testing for certain conditions or during pregnancy.
How the Test Works
The test uses a blood or plasma sample collected from a vein. The sample is analyzed using immunoassay methods (such as enzyme-linked immunosorbent assay, or ELISA), which detect HIV antibodies. The result is qualitative, meaning it only indicates whether antibodies are present or not.
What to Expect Before the Test
No special preparation is needed. You may have a small needle inserted into your arm to draw blood. If you’re nervous, let your healthcare provider know—they can help make the process more comfortable.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Positive results mean you likely have HIV antibodies, suggesting past or current infection. Negative results mean no detectable antibodies at the time of testing. Follow-up testing may be needed for confirmation. Early detection is critical for managing the virus and preventing complications.
Short name
HIV Antibody Test
Frequently asked questions
How long does it take to get results?
What does a positive result mean?
Can I still be infected if my test is negative?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
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.
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