A member asked:

How big a drop in peak flow is indicative of asthma? highest is 720 but becomes 660 - 610 without ventolin. can ventolin improve pf in healthy people?

A doctor has provided 1 answer
Dr. Natalie Hodge answered

Specializes in Pediatrics

Numbers and Symptoms: In a patient with known asthma, we generally understand an exacerbation to be in the 75% drop range on peak flow. Your numbers reflect a 92% drop. No, ventolin does not improve peak flow in healthy people. Do you have shortness of breath? You take flonase, which is for allergic rhinitis? Are you interested in athletic performance? A Prime Consult may help further the understanding you seek!

Answered 12/27/2016

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