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HIV Antibody Screening and Confirmation Test (Serum/Plasma)

Published: August 9, 2026Updated: August 16, 2026

This test checks for 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.

Quick summary

["Detects HIV antibodies to assess potential exposure or infection status."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
80387-4
Short code
HIV1+2 Ab SerPlBld Ql IA.rapid
Synonyms
HIV1+2 Ab SerPlBld Ql IA.rapid
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
ia-rapid
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

What This Test Measures

The test looks for antibodies produced by your immune system after exposure to HIV. These antibodies are detected using a rapid immunoassay method, which identifies specific proteins (antigens) associated with HIV. This screening test is designed to quickly determine if HIV antibodies are present in your blood or plasma.

How the Test Works

Your blood sample is analyzed using a rapid immunoassay technique that detects HIV antibodies. This method is highly sensitive and specific for identifying antibodies linked to HIV infection, often providing results within minutes.

Why It’s Done

Healthcare providers use this test to screen for HIV exposure, especially in high-risk groups or as part of routine health checks. It’s also used to confirm suspected HIV infection when initial screening results are positive.

Preparation and Process

No special preparation is needed. A small blood sample is taken from your arm, and the results are typically available immediately or within a short timeframe depending on the lab’s process.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

This test plays a critical role in early detection of HIV, enabling prompt medical intervention, counseling, and access to treatment options. Early diagnosis improves outcomes and helps prevent HIV progression to AIDS.

Short name

HIV Antibody Test

Frequently asked questions

What does a positive result mean?
A positive result indicates the presence of HIV antibodies, suggesting you may have been infected. Further confirmatory testing is usually recommended to confirm the diagnosis.
How soon can I get results?
Results are often available within minutes to a few hours, depending on the lab’s workflow and the method used. Follow-up instructions from your healthcare provider will guide you on next steps.
Can I have false positives?
While rare, false positives can occur due to cross-reactions with other substances or previous infections. Confirmatory testing is typically required for accurate diagnosis.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

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.

Medical Disclaimer

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