HIV-1 Antibody Screening and Confirmation (Serum/Plasma)
This test detects antibodies to the human immunodeficiency virus (HIV), which your body produces in response to infection. It helps determine if you may have been exposed to HIV.
["Screening for HIV antibodies to assess possible infection."]
Key facts at a glance
- LOINC
- 12895-9
- Short code
- HIV1 p58 Ab Ser Ql IB
- Synonyms
- HIV1 p58 Ab Ser Ql IB
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- ib
- 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
How the Test Works
Your blood sample is tested using an immunoassay method to identify specific antibodies against HIV. This process detects whether your immune system has recognized and fought off the virus, which can occur even before you develop symptoms.
What to Expect Before the Test
No special preparation is needed for this test. You may have blood drawn from a vein in your arm, similar to other blood tests. If you’re nervous, let your healthcare provider know—they can help make the process more comfortable.
What the Test Results Mean
A positive result means your blood contains antibodies to HIV, suggesting you may have been infected. A negative result means no detectable antibodies were found, but this does not guarantee you are not infected. Follow-up testing may be needed for confirmation.
Common Reasons for Testing
This test is often recommended for people at higher risk of HIV (e.g., sexually active individuals with multiple partners, those with sexually transmitted infections, or those with compromised immune systems), as well as during routine check-ups, pregnancy, or after potential exposure.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Clinical Significance
Short name
HIV Antibody Test
Frequently asked questions
Early detection of HIV is crucial for managing the infection and preventing complications. If you test positive, your healthcare provider will guide you on next steps, including treatment options and support services to help you stay healthy.
How soon can I get my results? Results are typically available within 1–3 business days, depending on your lab. Your healthcare provider will explain how and when you’ll receive them.
What should I do if I get a negative result? A negative result means no detectable antibodies were found, but it does not guarantee you are not infected. If you suspect exposure, ask your provider about additional testing or follow-up.
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