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HIV-1 Antibody Screening by Serological Assay (Qualitative)

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

This test detects antibodies to the human immunodeficiency virus (HIV) in your blood or serum. It helps determine if you have been exposed to HIV, even if you haven’t yet developed symptoms.

Quick summary

["This screening test checks for HIV antibodies, which may appear within weeks to months after exposure."]

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

Key facts at a glance

LOINC
44607-0
Short code
HIV1 SerPl IA-Imp
Synonyms
HIV1 SerPl IA-Imp
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
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 specific proteins (antibodies) produced by your immune system in response to HIV infection. These antibodies are created when your body encounters the virus, though they may take time to develop after exposure. This screening is typically the first step in diagnosing HIV infection.

How the Test Works

Your blood or serum sample is analyzed using an immunoassay method. This detects the presence of HIV antibodies by binding to them and triggering a measurable reaction, which is then interpreted by lab professionals.

Why It Matters

Early detection of HIV is crucial for managing the virus and preventing complications. This screening helps identify potential exposure so that medical advice, testing, and treatment can begin promptly.

When You Might Get This Test

Your healthcare provider may recommend this test if you have risk factors for HIV, such as unprotected sexual contact, sharing needles, or other behaviors that increase exposure risk. It may also be part of routine testing for certain groups or during specific medical evaluations.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

HIV Antibody Screen (Qualitative)

Frequently asked questions

Why was I asked to take this test?
Your doctor may have recommended this HIV antibody screening test because you have risk factors for HIV infection, such as recent exposure, sexual history, or other behaviors that put you at higher risk. It’s also part of routine testing for certain populations or during specific medical situations. Early detection helps manage the virus and prevents complications.
What does a positive result mean?
A positive result means your test detected HIV antibodies, which suggests you may have been infected. However, results can sometimes be false positives, so follow-up testing is required to confirm the diagnosis. If positive, your healthcare provider will guide you on next steps, including further testing and treatment options.
What does a negative result mean?
A negative result means your test did not detect HIV antibodies at the time of testing. However, it’s important to note that HIV antibodies may take weeks to months to develop after exposure. If you suspect you’ve been exposed, discuss with your doctor about additional testing or follow-up steps, such as a repeat test or other diagnostic procedures.
  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