Diagnostics·Diagnostics
Nasopharyngeal swab
Informed by recognized medical guidance
Overview
A nasopharyngeal swab is a test where a healthcare provider gently inserts a soft, thin stick with a cotton tip into your nostril to reach the back of your nose and throat. This collects a sample of mucus to check for infections like COVID-19, the flu, or other respiratory viruses.
Key facts
- The swab is quick—usually takes about 10 seconds.
- It may cause a tickling or brief discomfort but is not painful.
- The sample is sent to a lab to look for germs.
Yes, it is a very common test used to diagnose respiratory infections.
Anyone who has symptoms like cough, fever, or loss of smell, or who has been in close contact with someone with a respiratory infection, may be asked to have this swab.