A patient's blood pressure drops from 120/76 to 90/60 as soon as positive end-expiratory pressure (PEEP) is initiated for the treatment of hypoxemia. What is the most likely cause of this decrease in blood pressure?

Question

Quizplus · Accepted Answer

Decreased cardiac output is the most likely cause of the decrease in blood pressure when PEEP is initiated. PEEP can increase intrathoracic pressure, which in turn can decrease venous return to the heart, leading to a decrease in cardiac output and subsequently a drop in blood pressure.

A Patient's Blood Pressure Drops from 120/76 to 90/60 as Soon