A patient in the ICU has a chest X-ray that shows bilateral infiltrates and has the following he-modynamic measurements:
: central venous pressure (CVP) 3 mm Hg, pulmonary artery pressure (PAP) 21/10 mm Hg, and pulmonary artery occlusion pressure (PAOP) 8 mm Hg. These findings are consistent with which of the following?
a. Acute respiratory distress syndrome
b. Cardiogenic pulmonary edema
c. Pulmonary hypertension
d. Right heart failure
ANS: A
The central venous pressure (CVP) and pulmonary artery pressure (PAP) are both within normal limits. Therefore, there is no pulmonary hypertension and no right ventricular failure. The bilateral infiltrates with a normal pulmonary artery occlusion pressure (PAOP) do not suggest cardiogenic pulmonary edema but are indicative of acute respiratory distress syndrome (ARDS).
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