In healthy, spontaneously breathing patients, an occasional increase in tidal volume to three or four times the normal level, which normally occurs about six to ten times each hour, is the definition of a:

Question

Quizplus · Accepted Answer

A sigh is an occasional deep breath that increases tidal volume significantly and occurs several times an hour in healthy individuals.

In Healthy, Spontaneously Breathing Patients, an Occasional Increase in Tidal