300905 Study Guide - Final Guide: Mechanical Ventilation, Chest Physiotherapy, Functional Residual Capacity

• School: UWS
• Department: University of Western Sydney
• Course: 300905
• Professor: anonymous

Document Summary

Several mechanical techniques are used to dislodge sputum and encourage its expectoration. One technique is chest physiotherapy where a respiratory therapist percusses an individual"s chest by hand several times a day, to loosen up secretions. This "percussive effect" can be administered also through specific devices that device chest wall oscillation or intrapulmonary percussive ventilator. Other methods such as bipjqwoc cuirass ventilation, and associated clearance mode available in such devices, integrate a cough assistance phase, as well as a vibration phase for dislodging secretions. These are portable and adapted for home use. Chest physiotherapy is beneficial for short-term airway clearance. Another technique is positive expiratory pressure physiotherapy that consists of providing a back pressure to the airways during expiration. This effect is provided by devices that consists of a mask or a mouthpiece in which a resistance is applied only on the expiration phase.