Respiratory SARS-CoV-2 Nucleic Acid Detection (Qualitative) via Reverse Transcription Polymerase Chain Reaction (RT-PCR)
This test checks for the presence of genetic material from the virus that causes COVID-19 in your respiratory sample. It helps determine if you may be infected and could spread the virus.
["A COVID-19 test to identify active infection by detecting the virus’s genetic material in your nose or throat."]
Key facts at a glance
- LOINC
- 95423-0
- Short code
- FLUABV + SARS-CoV-2 Resp NAA+probe
- Synonyms
- FLUABV + SARS-CoV-2 Resp 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 small swab to collect a sample from your upper respiratory tract (nose or throat). The swab is then sent to a lab where it undergoes a process called reverse transcription polymerase chain reaction (RT-PCR). This method amplifies and detects specific genetic sequences unique to SARS-CoV-2, the virus responsible for COVID-19. If the virus is present, the test will identify it.
Sample Collection
You will receive a swab to gently insert into your nose or throat. The process is quick and usually painless. You may experience a slight discomfort or mild irritation, but it is temporary. Follow your healthcare provider’s instructions carefully to ensure proper sample collection.
When You Might Need This Test
This test is commonly used when you have symptoms of COVID-19, such as fever, cough, shortness of breath, or fatigue. It may also be recommended if you have been exposed to someone with COVID-19, or if you are required for travel, employment, or other reasons by public health guidelines.
Test Results and Interpretation
Results are typically reported as either positive (indicating the presence of the virus) or negative (indicating no detectable virus). A positive result means you may be infected and could spread the virus to others. A negative result does not necessarily mean you are not infected, especially if you have symptoms or were exposed recently. Follow-up testing or monitoring may be advised by your healthcare provider.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Short name
SARS-CoV-2 RT-PCR Test
Frequently asked questions
What does a positive test mean?
Can I get this test at home?
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