SARS-CoV-2 Nucleic Acid Test (Qualitative, Qualifier: Qualitative)
This test detects genetic material from the virus responsible for COVID-19 in a sample collected from your nose or throat.
["A positive result may indicate recent infection; a negative result does not always mean you are not infected."]
Key facts at a glance
- LOINC
- 94307-6
- Short code
- SARS-CoV-2 N gene Spec Ql NAA N1
- Synonyms
- SARS-CoV-2 N gene Spec 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
How the Test Works
The test uses a specialized molecular method to identify fragments of the virus’s genetic code (nucleic acids) in your sample. If the virus is present, the test can detect these fragments, helping confirm or rule out COVID-19 infection.
Sample Collection
You’ll provide a nasal or throat swab sample, similar to a routine flu test. The sample is then processed to extract viral genetic material for testing.
What to Expect After Testing
Results are typically available within 24 to 48 hours. If you receive a positive result, follow your healthcare provider’s guidance for next steps, such as isolation or treatment. A negative result means the test did not detect viral genetic material at the time of testing but does not guarantee you are not infected.
When This Test Is Used
This test is commonly used for diagnosing active COVID-19 infection, especially in symptomatic individuals, before or after exposure, or during outbreaks. It may also be used in screening settings, such as before travel or returning to work.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
A positive result strongly suggests recent COVID-19 infection and may guide treatment decisions, such as antiviral medications or isolation protocols. A negative result can help confirm absence of infection if symptoms persist or exposure is suspected. This test is highly sensitive for detecting viral genetic material but may not detect very early or late-stage infections.
Frequently asked questions
Why might I need this test?
What does a positive result mean?
Can a negative result mean I’m not infected?
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