Cardio & respiratory test

Peak Expiratory Flow Test

Peak expiratory flow measurement using a peak flow meter โ€” quick screen for asthma or airway obstruction.

Duration

5 min

Category

Cardio & respiratory

Included in

1 medical

What It Involves

A quick test where you blow as hard as you can into a peak flow meter, measuring the maximum speed you can exhale. It screens for asthma or airway obstruction when spirometry is not needed โ€” sometimes used as a preliminary check before a full lung function test in roles with respiratory exposure risk.

What to Bring

Valid photo ID (passport or driving licence) (and 1 more items)

Read full guide

Frequently Asked Questions

No โ€” peak flow is a quick single-blow screen. Spirometry is a fuller lung function test with multiple measurements.

Yes โ€” use your inhaler as prescribed unless your clinic asks otherwise, and tell the clinician what you have taken.

Health questionnaire

If your clinic requires a pre-visit health form, we'll email you their link. You complete it directly with the clinic โ€” we never see or store your answers.

We use essential cookies to make BookMyMedical work, and optional analytics cookies to improve it. You can accept or reject optional cookies under UK GDPR & PECR.