Influenza A and B RNA, Qualitative, Nucleic Acid Probe Test

Why This Test Is Done

Your healthcare provider may order this test if you have symptoms like fever, cough, sore throat, or body aches that could be caused by the flu. It’s especially useful for people at higher risk of complications, such as young children, older adults, or those with chronic health conditions. This test helps confirm whether you need antiviral medications early in your illness.

How the Test Works

A small sample of your nasal or throat secretions is collected using a swab. The test looks for the genetic material (RNA) of influenza A and B viruses using a molecular probe. Unlike traditional cultures, this method provides results in hours rather than days.

Sample Collection and Preparation

You’ll likely have a quick procedure where a healthcare provider inserts a swab into your nose or throat. The swab is placed in a special container, and the sample is sent to a lab for testing. No special preparation is needed, but avoid cleaning your nose with saline or nasal sprays before testing, as this may affect results.

Test Results and Interpretation

Results are typically available within a few hours. A positive result means the test detected genetic material from influenza A or B viruses, suggesting an active infection. A negative result means the test did not detect these viruses, but other causes of your symptoms could still be possible. Follow-up testing or symptoms may guide further evaluation.