Airway Clearance Units, Positive Expiratory Pressure
Definition : Airway clearance units designed to generate positive airway pressure in the airways (typically 10 to 20 cm of H20 or larger) as the patient exhales through a resistance. Positive expiratory pressure (PEP) devices include one of a variety of fixed-orifice resistors that only generates pressure when the expiratory flow is high enough to generate back pressure from the orifice. PEP units typically include a soft, transparent, hand ventilation mask or mouthpiece, a T assembly with a one-way valve, and a manometer. The mask is applied tightly but comfortably over the mouth and nose. A mouthpiece can be also used, but only if the patient can maintain a reasonable seal and not release air through the nose during the procedure. PEP airway clearance units are mainly used to help remove pulmonary secretions.
UMDC code : 20733