This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
[{'content': 'All increase the chances of Deep Vein Thrombosis except- \nSelect and explain. \nA. Oral contraceptive pills, B. Hypeension, C. Superficial thrombophlebitis, D. Myocardial Infection', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Superficial thrombophlebitis Superficial thrombophlebitis is localized to the superficial veins. It does not result in deep venous thrombosis or pulmonary embolism. o Oral contraceptive pills : Contributes by increasing blood hypercoagulability o Hypeension : Contributes by endothelial injury which results from the hemodynamic stress associated with hypeension. H.T. may precipitate congestive hea failure and hence stasis. o Myocardial infarction : immobilization following myocardial infarction may account for its high incidence in such cases. This contributes by stasis.", 'role': 'assistant'}]