Indicator Explainer
Influenza A/B RNA
Molecular detection and typing of influenza A and B viruses.
This page explains what the indicator is and how results are interpreted in general terms. Reference ranges depend on the laboratory, the method, and your own situation — no single “normal value” applies to everyone. This page is health information, not a diagnosis. For symptoms, treatment, or urgent concerns, contact a healthcare professional.
When it is tested
Ordered in respiratory illness seasons, often inside multiplex panels together with RSV and SARS-CoV-2, to support antiviral decisions and infection control.
Reading results
A typed positive (A or B) informs antiviral and cohorting decisions; subtype detail, when reported, depends on assay design. Season timing affects predictive values, and guidelines describe when testing adds value beyond clinical diagnosis.
Questions to ask a professional
- Does the panel differentiate influenza A subtypes?
- What is the co-test coverage for other respiratory viruses?
Related Tests
Tests that measure or involve this indicator.