Q.

Regarding pulmonary emboli, which statement is correct?

A. a normal Aa gradient excludes a PE
B. a paO2>80 excludes a PE
C. a normal CXR excludes a PE
D. anticoagulation reduces mortality from PE from 30% to 10%
E. all of the above are correct
Answer» D. anticoagulation reduces mortality from PE from 30% to 10%
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