The nurse is facilitating weaning of a client from mechanical ventilation. The nurse uses ventilation that allows inspiratory and expiratory airway pressures to be maintained above atmospheric pressure and helps keep the client's lungs inflated
This method tends to improve lung function, even though breathing is spontaneous. What is the term for this mode of ventilation? A) Synchronized intermittent mandatory ventilation (SIMV).
B) Pressure support ventilation (PSV).
C) Continuous positive airway pressure (CPAP)
D) Volume ventilation
C
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CPAP allows inspiratory and expiratory airway pressures to be maintained above atmospheric pressure. CPAP helps keep the client's lungs inflated and tends to improve lung function, even though breathing is spontaneous. SIMV gives the client a preset number of mechanical breaths at a certain volume. In addition, the client can take as many breaths at his or her own volume as desired. In PSV, constant pressure is applied as the person inspires, which lessens the inspiratory effort or work needed. Volume ventilation delivers a consistent, preset volume of air with each breath, ensuring adequate breathing.
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