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Treating asthma in children ages 5 to 11

Using a peak flow meter to track asthma

Your child's healthcare professional may give your child a hand-held device called a peak flow meter. The peak flow meter measures how well the lungs are working.

Low peak flow meter readings are a sign that the asthma is becoming worse. You and your child may notice low readings before you even notice symptoms. This helps you know when to adjust treatment to prevent a flare-up of asthma symptoms.