Which therapeutic measure would be the most effective in treating hypoxemia in the presence of intrapulmonary shunting associated with acute respiratory distress syndrome (ARDS)?
A) Sedating the patient to blunt noxious stimuli
B) Increasing the FiO₂ on the ventilator
C) Administering positive-end expiratory pressure (PEEP)
D) Restricting fluids to 500 mL per shift

Question

Quizplus · Accepted Answer

The purpose of using positive-end expiratory pressure (PEEP)in a patient with acute respiratory distress syndrome is to improve oxygenation while reducing FiO₂ to less toxic levels.PEEP has several positive effects on the lungs,including opening collapsed alveoli,stabilizing flooded alveoli,and increasing functional residual capacity.Thus,PEEP decreases intrapulmonary shunting and increases compliance.

Which Therapeutic Measure Would Be the Most Effective in Treating