Which statement describes a typical IPC mechanism?

• A. A sequentially inflated chambers to promote venous return and edema reduction
• B. Static compression only
• C. Increases arterial blood pressure massively
• D. Is contraindicated in all edema

Answer: (A)

Intermittent pneumatic compression works by using sleeves that inflate in sequence, typically from the far end of the limb toward the body. This creates a wave of external pressure that pushes venous blood and interstitial fluid back toward the heart, promoting venous return and helping reduce edema. The cycling (inflation and deflation) provides a dynamic push, which is more effective for moving fluid than a constant, static squeeze.

Static compression alone wouldn’t produce that sequential wave of pressure and fluid movement, so it’s not the typical mechanism. It also isn’t about massively raising arterial blood pressure—its main effect is on venous return and lymphatic drainage. And edema isn’t an absolute contraindication to IPC; it can be used in many edema conditions under appropriate clinical guidance.

So the best description is the sequentially inflated chambers that promote venous return and edema reduction.