SARS-CoV-2 Genomic Sequence Variant Detection (Specimen: Saliva)
This test analyzes genetic material from a saliva sample to detect specific variants of the SARS-CoV-2 virus, including the original strain and variants like Delta or Omicron. It helps identify which variant may be present in your body.
["This test helps determine if the virus causing COVID-19 has certain genetic changes that may affect how it spreads or behaves."]
Key facts at a glance
- LOINC
- 96756-2
- Short code
- SARS-CoV-2 S gene N501= Spec Ql
- Synonyms
- SARS-CoV-2 S gene N501= Spec Ql
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- molgen
- 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
Why This Test Is Done
Your healthcare provider may order this test if you have symptoms of COVID-19, have been exposed to someone with the virus, or if you are in a setting where monitoring for specific variants is recommended. It can also be used to guide treatment decisions, especially in areas where certain variants are more common.
What to Expect Before the Test
You will provide a saliva sample, usually collected by spitting into a tube. No special preparation is needed, but avoid eating or drinking for about 30 minutes before the test if instructed.
How the Test Works
The saliva sample is analyzed to detect the genetic sequence of the virus. Specialized laboratory techniques identify and compare the genetic material to known variants of SARS-CoV-2. This helps determine if the virus in your sample matches a specific variant.
What the Results Mean
If the test detects the genetic sequence of the virus, it will indicate which variant (if any) is present. Results may show the original strain or a specific variant like Alpha, Beta, Delta, or Omicron. This information can help guide public health measures and treatment options.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Knowing the specific variant of SARS-CoV-2 can inform public health decisions, such as adjusting vaccination strategies, travel advisories, or recommendations for isolation. It may also help healthcare providers tailor treatments or monitor the effectiveness of vaccines against different variants.
Short name
SARS-CoV-2 Genomic Testing (Saliva)
Frequently asked questions
What Does a Positive Result Mean?
How Accurate Is This Test?
How Long Does It Take to Get Results?
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