Which characteristic is true of the ideal vena cava filter?
a. Low filtration
b. Low cost
c. Large caliber insertion device
d. Magnetic
ANS: B
The ideal filter should have the following characteristics: low cost, lifetime of device is not time limited, high filtration without flow interruption, low access site thrombosis, small caliber percutaneous insertion and deployment devices, repositioned or removed easily, secure fixation to the vessel wall, and MRI friendly (non-magnetic).
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