SARS-CoV-2 Nucleic Acid Gene Saliva Test (Qualitative)
This test detects genetic material from the SARS-CoV-2 virus in your saliva to determine if you have an active infection with COVID-19.
["A positive result suggests recent infection; a negative result means the test was negative at the time of collection."]
Key facts at a glance
- LOINC
- 96448-6
- Short code
- SARS-CoV-2 N gene Sal Ql NAA N1
- Synonyms
- SARS-CoV-2 N gene Sal Ql NAA N1
- 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-cdc-primer-probe-set-n
- 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 genetic sequences (genes) from the SARS-CoV-2 virus in your saliva. These sequences are unique to the virus and help confirm if you are currently infected with COVID-19. The test uses a molecular method to identify these genetic fragments, which can indicate the presence of the virus even if symptoms are mild or absent.
How the Test Works
Saliva is collected using a simple swab or drop collection method. The sample is then analyzed in a lab to detect viral genetic material. If the virus is present, the test will identify its genetic material, confirming an active infection.
When to Get Tested
This test is typically recommended if you have symptoms of COVID-19 (such as fever, cough, or difficulty breathing), have been exposed to someone with COVID-19, or are in a setting where testing is required (e.g., travel, workplace, or school). It can also be used for screening in asymptomatic individuals in certain high-risk or high-transmission environments.
Test Limitations
While this test is highly accurate, it may not detect the virus immediately after exposure. Results can sometimes take several days to return, depending on the lab’s processing time. False negatives are possible if the test is taken too soon after exposure or if the sample is not collected correctly.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Clinical Significance
Short name
SARS-CoV-2 RNA Test (Saliva)
Frequently asked questions
Why might my doctor order this test?
What does a positive result mean?
Can I get this test at home?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
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.
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