SARS-CoV-2 RNA Nucleic Acid Detection by Probe-Based Assay (Qualitative)
This test checks for the presence of genetic material from the virus that causes COVID-19 in your sample. It helps determine if you have an active infection.
["This test identifies whether COVID-19 is currently active in your body."]
Key facts at a glance
- LOINC
- 94759-8
- Short code
- SARS-CoV-2 RNA Nph Ql NAA+probe
- Synonyms
- SARS-CoV-2 RNA Nph Ql NAA+probe
- 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 specialized probe to detect genetic material (RNA) from the SARS-CoV-2 virus. If the virus is present, the probe binds to its genetic material, triggering a signal that confirms a positive result. This method is highly sensitive and specific for detecting active COVID-19 infection.
What to Expect Before the Test
You may be asked to provide a nasal or throat swab sample, depending on your healthcare provider’s instructions. Avoid using mouthwash or cleaning agents before sampling to ensure accurate results. Follow any specific preparation guidelines provided by your doctor or lab.
What the Results Mean
A positive result means the virus is likely present in your body, indicating an active COVID-19 infection. A negative result means the test did not detect the virus at the time of testing, but reinfection or a delayed viral presence cannot be ruled out without retesting. Results are qualitative and do not provide a quantitative measure of viral load.
When You Might Need This Test
This test is commonly used for diagnosing suspected COVID-19 infections, especially in individuals with symptoms like fever, cough, or shortness of breath. It may also be recommended for screening in high-risk settings, such as healthcare facilities, schools, or community gatherings, depending on local guidelines.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
This test plays a critical role in identifying active COVID-19 infections, enabling prompt isolation, treatment, and public health measures to prevent spread. Early detection helps healthcare providers manage patient care, reduce transmission risks, and guide vaccination and booster strategies. Results should be interpreted alongside clinical symptoms and medical history.
Short name
SARS-CoV-2 RNA Test (Qualitative)
Frequently asked questions
What does a positive result mean?
Can I get a negative result even if I have COVID-19 symptoms?
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