What is the primary goal of an IVC filter?

• A. To enhance blood flow
• B. To trap emboli
• C. To increase blood pressure
• D. To perform inner vessel repairs

Answer: (B)

The primary goal of an IVC (Inferior Vena Cava) filter is to trap emboli. These filters are used in patients who are at risk of developing deep vein thrombosis (DVT) and subsequent pulmonary embolism. The filter is placed in the inferior vena cava to capture and prevent blood clots that may dislodge from the veins of the legs and travel to the lungs, where they could cause significant complications or even death.

IVC filters act as a barrier; they allow blood to flow through while still catching clots before they can reach the pulmonary circulation. This is particularly crucial for patients who cannot take anticoagulants, as these medications may put them at risk for bleeding. Understanding the function of the IVC filter is essential in the context of managing thrombosis and preventing potentially life-threatening events associated with emboli.

The other options—enhancing blood flow, increasing blood pressure, and performing inner vessel repairs—do not align with the intended purpose of the IVC filter, which is specifically designed to intercept emboli rather than alter blood flow dynamics or vessel integrity.