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With regard to pulmonary emboli.
A. 30% are clinically silent
B. obstruction of small end artery pulmonary branches only occurs in 5%
C. acute RHF may occur if >60% of total vasculature is occluded
D. embolic obstruction of middle sized arteries causes infarction in 10-15%
E. 80% are from thromboembolic disease

Isha@2663 Answered question August 18, 2024