Asthma - Peak Flow Diary

Authored by Dr Colin Tidy, 08 Dec 2016

Patient is a certified member of
The Information Standard

Reviewed by:
Prof Cathy Jackson, 08 Dec 2016

This leaflet is designed to be printed out for people to record their peak flow reading.

Peak flow diary for printing off

 To take a peak flow reading

  1. Put the marker to zero.
  2. Take a deep breath.
  3. Seal your lips around the mouthpiece.
  4. Blow as hard and as fast as you can into the device.
  5. Note the reading.
  6. Repeat three times.

The 'best of the three' is the reading to record on the chart.

Normal peak flow readings vary, depending on your age, size, and sex. The range of normal peak flow readings is published on a chart, and doctors and nurses refer to the chart when they check your peak flow reading. In healthy people, peak flow readings vary slightly from time to time. The reading is often slightly higher in the evening compared with the morning.

Peak flow normal values

Below is an example of a two-week diary of peak flow readings done by a child who has quite bad asthma.

peak flow
      

Further reading and references

Hi allPLEASE PLEASE I need some advice if anyone has experienced these symptoms.....For the last 6 months or so I have been coughing more so at night during my sleep and it wakes me up. Initially...

kay19801
Health Tools

Feeling unwell?

Assess your symptoms online with our free symptom checker.

Start symptom checker
Listen