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Pathology · Thrombosis
Sample itemWhich element of Virchow triad is illustrated by prolonged bed rest after surgery?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
D. Venous stasis
Immobility slows venous blood flow, producing venous stasis that promotes thrombosis; this is one of Virchow triad along with endothelial injury and hypercoagulability.
Option by option
A. Thrombocytopenia
Thrombocytopenia generally increases bleeding rather than causing venous stasis.
B. Endothelial injury from vasculitis
Vasculitic endothelial injury is a different thrombosis mechanism.
C. Inherited protein synthesis failure
Inherited protein abnormalities may cause hypercoagulability but are not created by bed rest.
D. Venous stasis (correct)
Correct: prolonged immobility promotes venous stasis.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.