HIV Antibody Test (Qualitative) – Serum
This test checks for antibodies to the human immunodeficiency virus (HIV) in your blood. Antibodies are your body’s natural defense against infections, including HIV.
["Determines if your body has detected HIV infection, often used as part of routine testing or after exposure risk."]
Key facts at a glance
- LOINC
- 43009-0
- Short code
- HIV1+2 IgG Ser Ql
- Synonyms
- HIV1+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 detects HIV antibodies, which develop after your immune system has been exposed to HIV. These antibodies are produced months after infection, though some people may test positive sooner if they have a recent exposure. This test does not directly measure HIV virus levels or confirm active infection—it only indicates whether your body has produced antibodies against it.
How the Test Works
Your blood sample is drawn and tested using an immunoassay method. This detects specific antibodies that target HIV proteins. The result is qualitative (positive or negative) rather than quantitative, meaning it doesn’t provide a specific amount of antibodies.
When You Might Need This Test
This test is commonly used for routine HIV screening, especially in high-risk groups (e.g., sexually active individuals, people with multiple sexual partners, or those with sexually transmitted infections). It may also be recommended after potential exposure to HIV (e.g., unprotected sex, needle sharing) or as part of pre-exposure prophylaxis (PrEP) monitoring.
What to Expect Before the Test
No special preparation is needed. You may have a small bruise or slight discomfort from the blood draw, but this usually fades quickly. If you’re pregnant, breastfeeding, or have a bleeding disorder, let your healthcare provider know before the test.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Why This Test Matters
Short name
HIV Antibody Screen (Qualitative)
Frequently asked questions
Early detection of HIV is critical for managing the infection effectively. While this test doesn’t diagnose HIV directly, it helps identify potential exposure so that further testing (like HIV viral load or antibody confirmation) can be done. Untreated HIV can weaken your immune system over time, but early treatment improves health outcomes.
How long does it take to get results from this test?
Can I have this test if I’ve already been tested for HIV before?
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