Prophylactic deep venous thrombosis (DVT) therapy would be most important in which of the following patient groups?

a. General surgery patients
b. General ward patients
c. ICU patients
d. Patients with hip replacements

ANS: D
The frequency of proximal DVT varies from 2% to 4% among general surgical patients undergo-ing minor surgery from 40% to 80% among patients at the highest risk, such as those who have undergone hip or knee surgery.