04-07-2009, 08:29 AM
Two days after a cholecystectomy, a 42-year-old
woman has
shortness of breath. Her temperature is 37.5 C (99.5
F), blood pressure is
110/70 mm Hg, pulse is 103/min, and respirations are
24/min. There is
abdominal tenderness. Examination shows no other
abnormalities. An
x-ray film of the chest shows minimal linear markings
in the right lower
lobe. Arterial blood gas analysis on 45% oxygen
shows:
pH 7.41
PCO2 40 mm Hg
PO2 52 mm Hg
Which of the following is the most likely explanation
for her hypoxia?
A
) Acute respiratory distress syndrome
B
) Atelectasis
C
) Congestive heart failure
D
) Fat embolism syndrome
E
) Pneumonia
F
) Pneumothorax
woman has
shortness of breath. Her temperature is 37.5 C (99.5
F), blood pressure is
110/70 mm Hg, pulse is 103/min, and respirations are
24/min. There is
abdominal tenderness. Examination shows no other
abnormalities. An
x-ray film of the chest shows minimal linear markings
in the right lower
lobe. Arterial blood gas analysis on 45% oxygen
shows:
pH 7.41
PCO2 40 mm Hg
PO2 52 mm Hg
Which of the following is the most likely explanation
for her hypoxia?
A
) Acute respiratory distress syndrome
B
) Atelectasis
C
) Congestive heart failure
D
) Fat embolism syndrome
E
) Pneumonia
F
) Pneumothorax