Percutaneous coronary interventions involve:

A) recanalizing a blocked coronary artery by passing a balloon or stent through a catheter via a peripheral artery.
B) passing a 2-mm catheter through the femoral artery and administering a fibrinolytic agent through the catheter.
C) using a large vein from one of the lower extremities to reroute blood flow past an occluded coronary artery.
D) passing a guide wire through one of the external jugular veins to directly visualize an occluded coronary artery.

Answer: A) recanalizing a blocked coronary artery by passing a balloon or stent through a catheter via a peripheral artery.