Infants can generate auto-PEEP by which of the following methods?
A) Active expiration
B) Increased diaphragmatic excursion
C) Laryngeal braking
D) Retractions

Question

Quizplus · Accepted Answer

The infant, especially one in distress, can actively end expiration and begin the next inspiratory phase to cause gas trapping, which leads to elevated FRC and better ventilation/perfusion matching. This can be accomplished actively using their diaphragm during exhalation to slow expiration and to adduct (close) their vocal cords and narrow the glottis. The combination of these two maneuvers effectively regulates volume in the lung and dynamically elevates the FRC. The narrowing of the glottis or larynx during exhalation is referred to as "laryngeal braking."

Infants Can Generate Auto-PEEP by Which of the Following Methods