Which of the following statements are true of PCWP?
I.Normally its force is 6 to 12 mm Hg.
II.When the PCWP rises above 18 mm Hg, early clinical signs of pulmonary edema appear on the chest x-ray image.
III.Above 25 mm Hg the chest x-ray film shows obvious evidence of pulmonary edema.
IV.PCWP is a valuable clinical tool for monitoring the effects of intravenous fluid infusions in hemodynamically unstable patients.

Question

Quizplus · Accepted Answer

PCWP is the pressure in the pulmonary capillaries tending to force fluid into the interstitial space. Normally, this force of 6 to 12 mm Hg is opposed by capillary osmotic forces, and pulmonary edema is prevented.
When the PCWP rises above 18 mm Hg, early clinical signs of pulmonary edema appear on the chest x-ray image. Above 25 mm Hg the chest x-ray film shows obvious evidence of pulmonary edema. Thus, the PCWP is a valuable clinical tool for monitoring the effects of intravenous fluid infusions in hemodynamically unstable patients.

Which of the Following Statements Are True of PCWP