Which of the following is a risk factor for deep vein thrombosis

Which of the following is a risk factor for deep vein thrombosis

Which of the following is a risk factor for deep vein thrombosis (DVT)?

A. Regular exercise

B. Prolonged immobilization

C. Low body mass index (BMI)

D. Hypotension

Answer: B

Explanation: Prolonged immobilization (surgery, bed rest, long travel) reduces venous blood flow, a major DVT risk factor.