SARS-CoV-2 Genomic Sequence Detection by Targeted Probe Amplification (Nucleocapsid Protein)
This test detects genetic material from the SARS-CoV-2 virus, the cause of COVID-19, using a specialized molecular method. It helps confirm infection by identifying unique viral sequences.
["This test checks for the virus that causes COVID-19 by analyzing a small sample of your bodily fluid."]
Key facts at a glance
- LOINC
- 96900-6
- Short code
- SARS-CoV-2 S gene Ct OPA wash Qn NAA+prb
- Synonyms
- SARS-CoV-2 S gene Ct OPA wash Qn 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 molecular technique to identify specific genetic sequences in your sample. It targets a part of the virus’s nucleocapsid protein, which is unique to SARS-CoV-2. If the virus is present, the test can detect its genetic material.
Sample Collection
You will provide a nasal or throat swab sample, similar to a rapid COVID-19 test. This sample is then processed in a lab to extract viral genetic material for testing.
What to Expect Before the Test
No special preparation is needed for this test. You may have a rapid COVID-19 test done at the same time, or your sample may be sent to a lab for further analysis. If you’re taking medications or have recent medical conditions, let your healthcare provider know.
When Results Are Needed
Results from this test are typically available within a few days, depending on lab processing times. Your healthcare provider will discuss the results with you and guide next steps, such as isolation or treatment recommendations.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
This test plays a critical role in diagnosing active COVID-19 infection. Positive results confirm the presence of the virus and help guide treatment, isolation, and public health measures. Negative results may still be possible if the virus is present but not detected at the time of testing or if the sample was collected too early.
Short name
Nucleocapsid Probe Amplification Test
Frequently asked questions
Why did 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