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Human Immunodeficiency Virus (HIV) Antibody Screening by Saliva

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

This test detects antibodies to HIV, the virus that can cause AIDS, using a sample of your saliva. It helps screen for possible infection early in the disease process.

Quick summary

["A simple saliva test to check for HIV antibodies, often used as part of routine screening or risk assessment."]

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

Key facts at a glance

LOINC
41143-9
Short code
HIV1 Ab Sal-aCnc
Synonyms
HIV1 Ab Sal-aCnc
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

How the Test Works

Your saliva sample is tested for antibodies produced by your immune system in response to HIV. If HIV is present, these antibodies may be detectable. The test uses an immunoassay method to identify these antibodies, which is highly sensitive for early detection.

What to Expect Before the Test

You can prepare for this test by avoiding smoking or chewing gum for at least 30 minutes before testing, as these activities can introduce substances that might affect results. Bring any medications you’re currently taking, as some may influence test outcomes.

Common Uses for This Test

This test is primarily used as part of HIV screening, especially in populations at higher risk for infection. It may also be used in routine health check-ups, pre-exposure prophylaxis (PrEP) monitoring, or as part of workplace or travel-related health assessments.

What the Results Mean

A positive result means antibodies to HIV were found in your saliva, suggesting possible infection. A negative result means no detectable antibodies were found at this time, but HIV could still be present if you were infected recently. Follow-up testing may be needed for confirmation.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

HIV Antibody Screen (Saliva)

Frequently asked questions

Why might I need this test?
This test is often recommended if you have risk factors for HIV, such as unprotected sexual contact, shared needles, or living in an area with higher HIV prevalence. It can also be part of routine health evaluations, especially if you’re considering PrEP or have other health concerns.
What does a positive result mean?
A positive result indicates that HIV antibodies were detected, which may mean you have been infected. However, further testing (like a confirmatory HIV viral load test) is needed to confirm the diagnosis. Early detection is crucial for managing the infection and preventing complications.
Can I get false results?
While rare, false results can occur due to recent infection (where antibodies may not yet be detectable), past infection (where antibodies may have waned), or technical errors. If your result is unclear or positive, your healthcare provider will guide you on next steps, including repeat testing or additional confirmatory tests.
  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