peak expiratory flow

peak expiratory flow definition - medical

peak expiratory flow (pēk)

noun
The maximum flow of air at the outset of forced expiration, which is reduced in proportion to the severity of airway obstruction, as in asthma.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Comments
Improve this definition.
Do you have more to add? Share your linguistic knowledge or observation.
/Register to save your comments.