SARS-CoV-2 Nucleic Acid Detection by Reverse Transcription Polymerase Chain Reaction (RT-PCR) (Qualitative)

How the Test Works

The test uses a small sample of your respiratory secretions (like nasal or throat swab) to identify the virus’s genetic material. A laboratory processes the sample to amplify and detect specific viral sequences using RT-PCR, a highly sensitive method. This process helps confirm whether the virus is present in your system.

What to Expect During the Test

You’ll likely have a quick, painless procedure where a healthcare provider collects a swab from your nose or throat. The sample is then sent to a lab for testing. Results are typically available within a few days, depending on lab processing times.

When This Test Is Used

This test is commonly used for diagnosing active COVID-19 infections, especially in symptomatic individuals or those exposed to the virus. It may also be used in screening settings, such as before travel, at work, or in healthcare settings, to help prevent the spread of the virus.

Important Considerations

While this test is highly accurate for detecting active COVID-19, it may not detect the virus in everyone with symptoms. False negatives can occur if the sample is collected too early after exposure or if the virus is present in low amounts. Additionally, results may vary based on the timing of sample collection relative to symptom onset.