Question

Detrimental effects of positive end-expiratory pressure (PEEP) include all of the following except:

A) increased incidence of barotrauma

B) decreased venous return or cardiac output

C) increased pulmonary vascular resistance

D) increased CL

Answer 1

The detrimental effects of positive end-expiratory pressure (PEEP) include increased incidence of barotrauma, decreased venous return or cardiac output, and increased pulmonary vascular resistance, except for increased CL.

Step-by-step explanation:

The detrimental effects of positive end-expiratory pressure (PEEP) include increased incidence of barotrauma, decreased venous return or cardiac output, and increased pulmonary vascular resistance. These effects can be explained as follows:

1. Increased incidence of barotrauma: PEEP can potentially lead to over-distention of the alveoli, causing lung injury and barotrauma.
2. Decreased venous return or cardiac output: PEEP can increase intrathoracic pressure, which in turn can impede venous return to the heart and decrease cardiac output.
3. Increased pulmonary vascular resistance: PEEP can cause compression of pulmonary capillaries and increase pulmonary vascular resistance, making it harder for blood to flow through the lungs.

Therefore, the correct answer is D) increased CL, which is not a detrimental effect of PEEP.