What physiologic effect will raising the expiratory positive airway pressure have in the patient receiving noninvasive positive-pressure ventilation?

Question

Quizplus · Accepted Answer

Raising the expiratory positive airway pressure will increase the functional residual capacity by preventing airway collapse and improving gas exchange in the lungs. This can be beneficial in patients receiving noninvasive positive-pressure ventilation, as it can improve their oxygenation and reduce the work of breathing. Option B is not correct, as increasing the expiratory positive airway pressure may lead to a decrease in tidal volume, as it can increase airway resistance. Option C is not correct, as expiratory positive airway pressure does not affect the PCO2 levels. Option D is not correct since increasing the expiratory positive airway pressure will result in increased mean airway pressure, as it prolongs expiration and improves oxygenation.

What Physiologic Effect Will Raising the Expiratory Positive Airway Pressure