HIV-1 Antibody Screening and Confirmation Test by Qualitative PCR
This test detects antibodies to the HIV-1 virus, which your body produces in response to infection. It helps determine if you may have been exposed to HIV.
["Early detection of HIV antibodies supports timely medical evaluation and treatment options."]
Key facts at a glance
- LOINC
- 43010-8
- Short code
- HIV1+2 Ab Spec Ql
- Synonyms
- HIV1+2 Ab Spec 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
- 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
Why This Test Is Done
Your healthcare provider may recommend this test if you have symptoms of HIV (such as fever, fatigue, or swollen lymph nodes), have risk factors for HIV (like unprotected sex or shared needles), or are part of a group at higher risk for infection. It may also be part of routine screening for sexually active individuals or those with ongoing health concerns.
How the Test Works
The test involves two main steps: a screening test using an immunoassay (likely qualitative) to detect antibodies, followed by a confirmatory test using Polymerase Chain Reaction (PCR) to verify the presence of HIV genetic material. Blood serum or plasma is typically collected for this test.
What to Expect During the Test
You will have a small blood sample drawn from your arm, usually at a lab or clinic. The process is quick and may cause a slight pinch, but it usually doesn’t cause significant discomfort. No special preparation is needed.
Possible Results and Next Steps
If the screening test is positive, a confirmatory PCR test will be performed to confirm HIV infection. If both tests are positive, your healthcare provider will discuss next steps, which may include starting antiretroviral therapy (ART) to manage the virus and improve your health.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Clinical Significance
Short name
HIV Antibody Test (Screen & Confirm)
Frequently asked questions
Early detection of HIV is crucial because it allows for prompt medical intervention. Untreated HIV can lead to weakened immune function and serious health complications over time. This test helps identify infection early, enabling better management and improving long-term outcomes.
A positive result indicates that your blood contains antibodies or viral genetic material strongly suggestive of HIV infection. This requires further medical evaluation by a healthcare provider to confirm the diagnosis and discuss treatment options.
While rare, both false positives and false negatives can occur. False positives may happen if you have been recently vaccinated or have an autoimmune condition. False negatives are less likely with confirmatory PCR testing but can occur if testing is done too early after exposure.
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