Research has shown that the shape of the chart has an effect on how the pattern appears. Record your peak flow rate in an asthma diary. Email Address:. Step 4 : Repeat the entire routine three times. If your asthma is under control most of the time, your doctor may say it's OK to check your peak flow every few days instead of every day.
Thorax ; When should I check it? Some people with chronic bronchitis and emphysema also may benefit from the use of a peak flow meter. Peak Flow Meters A peak flow meter is a handheld device that measures how well air moves out of your lungs. Specialty Select Disease Select If your asthma is mild or you do not use daily medication, a peak flow meter may not be useful for your asthma management.
