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HIV-1 Antibody Screening and Confirmation Test (Serum/Plasma)

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

This test detects antibodies to the human immunodeficiency virus (HIV), which your body produces in response to the virus. It helps determine if you have been exposed to HIV.

Quick summary

["This test screens for HIV infection, which can be critical for early diagnosis and treatment planning."]

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

Key facts at a glance

LOINC
9667-7
Short code
HIV1 p51 Ab Ser Ql IB
Synonyms
HIV1 p51 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

The test uses an immunoassay method to identify HIV-1 antibodies in your blood. Your serum or plasma sample is exposed to HIV antigens, and if antibodies are present, they bind to these antigens. A detection system then confirms the presence of these antibodies, indicating potential exposure to HIV.

What to Expect Before the Test

There are no special preparations needed for this test. You may have a blood draw at a clinic, doctor’s office, or lab. If you’re nervous, let your healthcare provider know—they can help explain the process.

What to Expect After the Test

After your blood sample is taken, you may experience mild bruising, soreness, or swelling at the site. Apply gentle pressure and ice if needed. Avoid vigorous activity for a few hours.

Why This Test Matters

Early detection of HIV is crucial for managing the virus effectively. This test helps healthcare providers monitor your health, recommend treatment, and prevent complications like AIDS.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

HIV Antibody Test

Frequently asked questions

How soon can I get results?
Results are typically available within 1–3 business days, depending on lab processing times. Your healthcare provider will explain the next steps based on the outcome.
What does a positive result mean?
A positive result means your test detected HIV antibodies, indicating possible infection. You’ll need follow-up testing (like a confirmatory assay) and medical evaluation to confirm and guide treatment.
Can I still be at risk if my test is negative?
Yes, a negative result means no antibodies were detected at the time of testing. However, HIV can take time to develop antibodies, so if you suspect exposure, retesting after 3 months is recommended.
  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