What is a peak flow meter?
- It is a small device used for a simple breathing test.
- It can be used easily at home to monitor asthma.
Who should use a peak flow meter?
- Not everyone with asthma needs a peak flow meter.
- It is most helpful for those with severe asthma and those who have trouble knowing when their asthma is getting worse.
- The test must be done correctly each time to give useful results.
What do the results mean?
- Each person has their own personal best peak flow result. It is the highest number you can blow when feeling well. Your personal best will likely change over time.
- Results are compared to your personal best to monitor for asthma changes.
- When asthma problems are beginning, the number you are able to blow will be lower than normal.
- Peak flow readings can be used as a part of your asthma action plan.
- Guidelines can be given by your doctor or asthma educator for when to use the peak flow meter and how to use the readings.
How do I find my personal best peak flow number?
- Take readings morning and night for 2 weeks when you are feeling well.
- Your personal best will be the highest number you can usually blow during that 2 weeks.
- Recheck your personal best number a couple of times a year or if you change your peak flow meter.
What do I need to know about getting a peak flow meter?
- Most pharmacies can supply a peak flow meter.
- Cost of Peak Flow Meters range in price starting around from $30.00.
- Most models come with either a low range scale or a regular range scale. The low range is best for children under age 8 years (or 130 cm/52 inches).
- Some insurance plans and social assistance plans will cover peak flow meters as medical devices. A doctor's request will likely be needed for coverage.
If you would like to know more about peak flow meters speak to your asthma educator.
15 July 2011 Last Updated on 09 January 2014 Children's Allergy & Asthma Education Centre