Respiratory Syncytial Virus (RSV) RNA, Nasopharyngeal Specimen, Qualitative, Nucleic Acid Probe

What This Test Checks

The test looks for RNA from respiratory syncytial virus (RSV), a common virus that infects the lungs and breathing passages. It uses a nucleic acid probe technique, which is a molecular method that recognizes and binds to specific viral genetic sequences. A sample is typically collected by swabbing the nasopharynx (the upper part of the throat behind the nose).

How the Sample Is Collected

A healthcare professional collects the specimen using a specialized swab inserted into the nasal passage toward the back of the throat. This can feel briefly uncomfortable and may cause tearing or a tickle, but it is quick. The swab is then sent to the laboratory for molecular analysis.

Understanding Your Results

A "detected" or positive result indicates that RSV RNA was found in the sample, suggesting an active infection. A "not detected" or negative result means the virus was not identified at the time of testing. Results should always be interpreted by a healthcare provider alongside symptoms and other findings.

Why the Test Is Ordered

Doctors may order this test when someone, especially an infant, young child, older adult, or person with a weakened immune system, has signs of a respiratory infection such as cough, wheezing, or difficulty breathing. Identifying RSV can guide care and help prevent spreading the virus to others.