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Your child's peak flow tells you and your child's doctor how well your child's lungs are working. You need to know your child's personal best peak flow number to help control your child's asthma. This number is part of your child’s Asthma Action Plan.
How to use a peak flow meter. Peak flow can be useful to help in diagnosing and monitoring asthma. It is a measure of how well your child can blow air out of their lungs.
Your GP or asthma nurse might have recommended using a peak flow meter and recording your scores in a peak flow diary. Here we explain how it can be helpful and how to do it. Peak flow is just one of a number of ways you can keep an eye on how well you are. Your symptoms and how you feel will always be important, too.
There are three peak flow zones, which are set up like a traffic light: Go Zone, Caution Zone, and Danger Zone. A chart will be created to indicate your child’s peak flow numbers in each zone.
What should my child's peak flow number be? Your child's number can be determined from predicted normal peak flow values for people of the same age and height. See the chart at the end of this sheet for average peak flows for healthy children and teenagers.
Why is it necessary? By using a peak flow meter you can: see how well your medicines are working; figure out when to use more or less medicine; find out what makes your asthma symptoms worse; and often tell if an attack is coming before you notice symptoms. When to use your peak flow meter.
A peak flow meter is a tool to measure how well your child’s lungs are working. A healthy peak flow range is different for each child, depending on age, gender and height. Your asthma specialist will help you figure out your child’s ideal or “personal best” peak flow value.
