RNA Probe Analysis for Viral Nucleic Acid Detection (e.g., SARS-CoV-2)
This test detects genetic material from certain viruses in your respiratory samples using a molecular probe. It helps identify infections like COVID-19.
["This test quickly checks for viruses in your nasal or throat swab using a simple molecular probe to detect viral RNA."]
Key facts at a glance
- LOINC
- 47362-9
- Short code
- C trach+GC rRNA Spec Donr Ql NAA+probe
- Synonyms
- C trach+GC rRNA Spec Donr 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
A small sample from your nose or throat is collected using a swab. The sample is then analyzed in a lab to detect specific viral genetic material. A molecular probe binds to the virus’s RNA if present, triggering a measurable signal to confirm infection.
What to Expect Before the Test
You may experience mild discomfort from the swab insertion, but it typically takes only a few seconds. No special preparation is needed, though you may want to avoid smoking or using nasal sprays 24 hours before testing.
Common Uses of This Test
This test is primarily used for diagnosing respiratory infections, including COVID-19, by detecting viral RNA. It can also be used for screening or monitoring in clinical or research settings.
Limitations and Considerations
While highly accurate, results may not be available immediately. False negatives can occur if the sample is collected too early or if the virus is not actively replicating. Results should be interpreted by a healthcare provider.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
This test is critical for early diagnosis of viral infections, guiding treatment decisions and public health measures. It helps differentiate between viral and non-viral causes of respiratory symptoms, ensuring appropriate care.
Short name
Viral RNA Probe Test
Frequently asked questions
Why might my test results be delayed?
What if my test is positive?
Can I still spread the virus if my test is negative?
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