Anti-HIV-1 Antibody Test (Qualitative, Serum)
This test detects antibodies to the human immunodeficiency virus (HIV), which your body makes in response to infection. It helps determine if you’ve been exposed to HIV.
["This test checks for HIV antibodies to help assess past or potential exposure."]
Key facts at a glance
- LOINC
- 39297-7
- Short code
- FLUAV H10 Ab Titr Ser HAI
- Synonyms
- FLUAV H10 Ab Titr Ser HAI
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- hai
- 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 specific antibodies produced by your immune system after exposure to HIV. These antibodies are a sign that your body has encountered the virus, though they may take weeks to months to develop. This test is not used to diagnose HIV infection immediately after exposure but can indicate past exposure or infection.
How the Test Works
Your blood sample is tested using an immunoassay method to detect HIV antibodies. This method identifies whether your immune system has recognized and responded to the virus, though results alone do not confirm current infection status.
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), if you’re part of a screening program, or if you’re experiencing symptoms that could suggest HIV or other infections.
What to Expect Before the Test
No special preparation is needed. You’ll have a small needle inserted to draw blood from a vein, usually in your arm. This is quick and typically painless. If you’re nervous, let your healthcare provider know so they can provide reassurance or additional support.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
A positive result means you likely have antibodies to HIV, suggesting past exposure. However, a negative result does not definitively rule out HIV, especially if tested too soon after exposure. Follow-up testing with a confirmatory assay (like a Western Blot or PCR) may be needed. Early detection is critical for managing HIV and preventing progression to AIDS.
Short name
HIV Antibody Screen (Qual)
Frequently asked questions
When might I get false results?
What does a positive result mean?
Can this test be used to diagnose HIV immediately?
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