Fluorescent Immunoassay for Antigen Detection in Viral RNA (e.g., Influenza Virus)

This test is done to help your healthcare provider check for specific health conditions and monitor how your body is functioning. The results can guide important decisions about your care, allowing your care team to detect potential problems early and choose the most appropriate treatment or monitoring plan for you.

Your healthcare provider may order this test if you have symptoms like fever, cough, sore throat, body aches, or fatigue. It’s often used when flu season is active or if you’ve been exposed to someone with flu-like illness. This test helps confirm whether your symptoms are due to the flu or another illness.

The test works by analyzing a small sample from your body in a certified laboratory. Trained laboratory professionals use specialized equipment to measure specific markers or detect changes, producing accurate and reliable results that your healthcare provider will review and explain with you.

A small sample of your respiratory secretions (e.g., nasal swab or throat swab) is collected. The sample is tested using a fluorescent immunoassay to detect viral RNA. This method is highly sensitive and can provide results quickly, often within hours.

A trained member of your care team will collect the sample using a quick, routine procedure. Depending on the specific test, you may be asked to fast for several hours, avoid certain foods or medications, or drink extra water beforehand. Follow any instructions your provider gives you to help ensure the most accurate results.

You’ll likely have a quick, painless procedure where a healthcare provider collects a swab from your nose or throat. The swab is then sent to a lab for testing. No special preparation is needed, but avoid smoking or using nasal sprays before the test if instructed.

After your sample is collected, you can usually return to your normal activities right away. You may notice minor soreness or a small bruise at the collection site, which typically goes away within a day or two. Your healthcare provider will contact you to review your results and discuss any recommended next steps.

Results are typically available within a few hours. If the test is positive, it means the flu virus is present in your sample. If negative, it suggests you either don’t have the flu or the virus was no longer detectable at the time of testing.