Throat swab viral nucleic acid detection (by probe-based assay)
This test checks for viruses in a throat swab sample, often used to diagnose respiratory infections like colds, flu, or COVID-19.
["Helps identify viruses causing throat infections quickly for proper treatment and isolation guidance."]
Key facts at a glance
- LOINC
- 100710-3
- Short code
- C trach+GC pnl Throat NAA+probe
- Synonyms
- C trach+GC pnl Throat 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 healthcare provider collects a sample from your throat using a sterile swab. The swab is then analyzed in a lab to detect genetic material from viruses that may be causing an infection. This test looks for specific viral DNA or RNA fragments using a probe-based method, which is highly sensitive for detecting many common respiratory viruses.
What to Expect Before the Test
You may not need to prepare for this test. It’s typically done as part of a routine visit or when symptoms like sore throat, cough, or fever are present. Avoid eating or drinking immediately before the test if instructed, but this is not always required.
What to Expect During the Test
The test involves a quick, painless procedure where a healthcare provider gently swabs the back of your throat. You may feel slight discomfort, but it usually takes only a few seconds. The sample is then sent to a lab for analysis.
What to Expect After the Test
You can resume your normal activities right after the test. There are usually no side effects, but you might experience mild throat irritation for a short time. If you have questions about your results, discuss them with your healthcare provider.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Clinical Significance
Short name
Viral throat swab test
Frequently asked questions
Why might my doctor order this test?
How soon will I get my results?
Can this test detect all viruses?
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