Pulmonary embolism is most commonly produced by which of the following
When venous thrombi are dislodged from their site of formation,they embolize to the pulmonary aerial circulation producing pulmonary embolism.About one-half of patients with pelvic vein thrombosis develop pulmonary embolism.Other causes of pulmonary embolism include hip/knee surgery,trauma,pregnancy,immobility,thrombotic disorders. Reference:Harrison's medicine-18th edition,page no:2171;Davidson's medicine,22nd edition,page no:721.
Trauma
Atherosclerosis
Thrombosis of pelvic vessels
None
Respiratory system