Which of the following conditions are associated with the presence of air trapping and auto-PEEP?
I.High airway resistance
II.Weak lung recoil force
III.High breathing rates
IV.Short expiratory times

Question

Quizplus · Accepted Answer

High airway resistance, as seen in asthmatic patients, and weak lung recoil force, as seen in emphysema patients, require abnormally long expiratory times. High breathing rates shorten the time available for expiration, and if this is coupled with high airway resistance or weak lung recoil force, there may not be enough time for the lungs to empty to the normal FRC level before the next inspiration.

Which of the Following Conditions Are Associated with the Presence