Microbiology• Updated 21 October 2026
Influenza Test
A nose or throat swab test that detects flu viruses, including H1N1.
Results: Hours to a day Specimen: Nose or throat swab
Quick Summary
Primary Purpose
To diagnose flu in people at high risk or in hospital, and during outbreaks.
What It Measures
Influenza A and B (including H1N1).
Preparation
No preparation.
Overview
Most people with flu don't need testing.
Testing helps decide on antivirals in high-risk people.
What It Measures
Influenza A and B
Viral detection.
How It's Performed
- 01
Sample
A soft swab is gently rubbed on the area.
- 02
Lab
The swab is sent for testing.
- 03
Results
Your doctor contacts you with results.
Interpreting Results & Next Steps
Discuss with Doctor
Your doctor will explain what your result means and what happens next.
If values are High:
A positive result confirms flu.
Sources and further reading
Last updated 21 October 2026. For more detail, see these trusted health organisations.
- Flu (Influenza) Test(opens in a new tab) · MedlinePlus, US National Library of Medicine