Which of the following mechanisms explains the impaired renal function seen in patients receiving ventilatory support with positive pressure?
1) Decreased secretion of aldosterone
2) Decreased intravascular volume
3) Increased secretion of vasopressin

Question

Quizplus · Accepted Answer

Positive pressure ventilation can lead to decreased intravascular volume due to increased intrathoracic pressure, decreased venous return, and decreased cardiac output. This reduction in blood flow can impair renal function. Decreased secretion of aldosterone and increased secretion of vasopressin may play a role in fluid and electrolyte imbalance, but they are not the primary mechanisms for impaired renal function in this context.

Which of the Following Mechanisms Explains the Impaired Renal Function