Continuous Positive Airway Pressure (CPAP) applies a set level of pressure to the patient’s airway - greater than atmospheric pressure – and continuously applied to the upper respiratory tract. Patients are conscious and capable of completing spontaneous respirations. Application of elevated airway pressure, throughout the inspiratory-expiratory cycle, is intended to prevent alveolar collapse and to reduce the work of breathing in patients with impaired respiratory function or respiratory disease.

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