What is the purpose of a sequential compression device?

• A. Provide mechanical ventilation
• B. Promote blood flow and prevent blood clots (DVT)
• C. Monitor BP continuously
• D. Deliver IV medications

Answer: (B)

Sequential compression devices deliver timed, alternating pressure to the legs to promote venous return. By inflating and deflating in sequence, they push blood upward toward the heart, increasing venous flow and reducing venous stasis. This helps prevent clot formation, lowering the risk of deep vein thrombosis (DVT) in patients who are immobilized or recovering from surgery. They aren’t used for breathing support, continuous blood pressure monitoring, or delivering medications, which is why their main purpose centers on enhancing leg venous circulation to prevent clots.