Needles,guidewires,sheaths,catheters,and vascular closure devices are several specialty items used for IR procedures.A sheath is commonly inserted at the arterial or venous puncture site.What is the function of the sheath?
A) To protect the puncture site and vessel from damage
B) To dilate the vessel and prevent backflow
C) To prevent thromboembolism development
D) To hold the guidewire and catheter in place

Question

Quizplus · Accepted Answer

Sheaths protect the puncture site and vessel from damage and increase patient comfort during multiple sheath and dilator exchanges.Sheaths have a valved end to prevent backflow of arterial blood and a side arm to infuse heparinized saline solution.

Needles,guidewires,sheaths,catheters,and Vascular Closure Devices Are Several Specialty Items Used for IR