Approximately what percentage of pulmonary emboli originate from deep vein thrombosis?

Prepare for your CVP and GI Pathology Exam. Study using flashcards and multiple choice questions with hints and explanations to excel in your test.

Multiple Choice

Approximately what percentage of pulmonary emboli originate from deep vein thrombosis?

The main idea is that pulmonary emboli almost always come from a thrombus that formed in the deep venous system, typically in the legs or pelvis. When a deep vein thrombosis fragments, the piece travels through the venous circulation to the right heart and into the pulmonary arteries, causing an embolic event. Because this pathway is so common, studies from autopsies and clinical data consistently show that the vast majority of emboli originate from deep vein thrombosis, with about 95% used as a typical estimate. That makes this the best approximate figure among the options. The other percentages would understate how often PEs derive from DVT, reflecting rarer or alternative sources that contribute far less frequently.

The main idea is that pulmonary emboli almost always come from a thrombus that formed in the deep venous system, typically in the legs or pelvis. When a deep vein thrombosis fragments, the piece travels through the venous circulation to the right heart and into the pulmonary arteries, causing an embolic event. Because this pathway is so common, studies from autopsies and clinical data consistently show that the vast majority of emboli originate from deep vein thrombosis, with about 95% used as a typical estimate. That makes this the best approximate figure among the options. The other percentages would understate how often PEs derive from DVT, reflecting rarer or alternative sources that contribute far less frequently.

More practice questions