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SARS-CoV-2 Nucleic Acid Detection in Saliva by Probe-Based Nucleic Acid Amplification Test

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

This test checks for the presence of the virus that causes COVID-19 in your saliva. It helps determine if you may have been infected recently.

Quick summary

["A quick way to screen for active COVID-19 infection using a simple saliva sample."]

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

Key facts at a glance

LOINC
98080-5
Short code
SARS-CoV-2+SARSr-CoV RNA pnl Sal NAA+prb
Synonyms
SARS-CoV-2+SARSr-CoV RNA pnl Sal NAA+prb
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
probe-amp-tar
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 a special technique to detect genetic material from the virus. A small amount of your saliva is collected and analyzed to identify if the virus’s genetic code is present.

What to Expect During the Test

You’ll provide a saliva sample, typically collected by swabbing your inner cheek or spitting into a container. The process is quick and painless, often done at home or in a clinic.

When You Might Need This Test

This test is often used for screening, monitoring, or confirming recent COVID-19 exposure, especially in settings where saliva samples are preferred for ease.

Important Considerations

Results may not be 100% accurate immediately after exposure, as the virus must be present in detectable amounts. False negatives can occur if the sample is taken too early or if the virus is not actively replicating.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

SARS-CoV-2 Saliva PCR Test

Frequently asked questions

Why might I need this test?
This test helps identify active COVID-19 infection, which is important for managing symptoms, preventing spread, and guiding treatment decisions. It may be used in pre-exposure screening, workplace testing, or travel-related requirements.
What does a positive result mean?
A positive result means the virus’s genetic material was detected in your saliva, suggesting you may have an active infection. Follow your healthcare provider’s guidance on next steps, such as isolating or seeking further medical care.
Can I get this test at home?
Yes, some providers offer at-home saliva collection kits for convenience. Follow the instructions carefully to ensure accurate results. If you’re unsure, ask your healthcare team for guidance.
  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