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A member asked:
I'm 18 5ft10 12 stone my peak flow is 550 is that bad?
A doctor has provided 1 answer
PERF - peak flow: Monitoring the peak expiratory flow rate (PEFR) is useful for detecting changes or trends in a patient’s asthma control. An individual patient's normal PEFR range is defined as 80 and 100 percent of their personal best. This value is used to develop an "asthma action plan” https://goo.gl/b3JgdK
Answered 11/22/2015
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