01-24-2014, 12:26 PM
A 52-year-old woman comes to the emergency department
6 days after knee
arthroplasty because of constant, right-sided chest
pain and shortness
of breath for 24 hours. Her blood pressure is 110/50
mm Hg, pulse is
114/min, and respirations are 24/min. Examination of
the heart, lungs,
and extremities shows no abnormalities. Arterial
blood gas analysis on
room air shows:
pH 7.49
PCO2 29 mm Hg
PO2 66 mm Hg
Ventilation-perfusion lung scans show a low
probability for pulmonary
embolus. An ECG shows sinus tachycardia; an x-ray
film of the chest
shows no abnormalities. After the evaluation, the
patient is pain-free
and wishes to go home. Which of the following is the
most appropriate
next step in management?
A
) Discharge home and reexamination in 2 weeks
B
) Exercise stress test
C
) Pulmonary function tests
D
) Echocardiography
E
) Pulmonary angiography
F
) Ibuprofen therapy
ans pls.
6 days after knee
arthroplasty because of constant, right-sided chest
pain and shortness
of breath for 24 hours. Her blood pressure is 110/50
mm Hg, pulse is
114/min, and respirations are 24/min. Examination of
the heart, lungs,
and extremities shows no abnormalities. Arterial
blood gas analysis on
room air shows:
pH 7.49
PCO2 29 mm Hg
PO2 66 mm Hg
Ventilation-perfusion lung scans show a low
probability for pulmonary
embolus. An ECG shows sinus tachycardia; an x-ray
film of the chest
shows no abnormalities. After the evaluation, the
patient is pain-free
and wishes to go home. Which of the following is the
most appropriate
next step in management?
A
) Discharge home and reexamination in 2 weeks
B
) Exercise stress test
C
) Pulmonary function tests
D
) Echocardiography
E
) Pulmonary angiography
F
) Ibuprofen therapy
ans pls.