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HIV Antibody Screening (Qualitative) with Serum/Plasma

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

This test detects antibodies to the human immunodeficiency virus (HIV) in your blood or plasma. It helps determine if you have been exposed to HIV.

Quick summary

["This screening helps identify potential HIV infection early for timely medical evaluation and care."]

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

Key facts at a glance

LOINC
108719-6
Short code
HIV 2 RNA Msmt SerPl
Synonyms
HIV 2 RNA Msmt SerPl
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

What This Test Measures

The test looks for HIV antibodies, which your immune system produces in response to HIV infection. These antibodies are present in your blood or plasma if you have been exposed to the virus, even if you are not yet showing symptoms.

How the Test Works

This is a qualitative immunoassay (often a chemiluminescent immunoassay or fluorescence immunoassay) that detects HIV antibodies using a blood or plasma sample. The method may involve detecting specific markers that indicate an immune response to HIV.

Sample Collection and Preparation

A blood sample is drawn from your arm, and the serum or plasma is separated for testing. This sample is then analyzed in a lab to check for HIV antibodies.

When You Might Need This Test

You may need this test if you have risk factors for HIV, such as unprotected sexual contact, sharing needles, or other behaviors that increase exposure risk. It is also commonly used as part of routine screening in certain settings.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

HIV Antibody Screen

Frequently asked questions

How long does it take to get results?
Results are typically available within 1 to 3 business days, depending on your healthcare provider’s lab processing times.
What does a positive result mean?
A positive result means your test detected HIV antibodies, which may indicate past or current HIV infection. You should discuss the next steps with your healthcare provider, who may recommend additional testing to confirm the diagnosis and guide treatment options.
Can I have false positives or false negatives with this test?
Like any test, there is a very small chance of false results. False positives may occur rarely due to other infections or immune responses. False negatives can happen if the test is taken too early after exposure, before antibodies develop. Your healthcare provider will interpret results in the context of your medical history and symptoms.
  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