This document compares angioplasty and bypass surgery for treating blocked coronary arteries. It provides details on the procedures, risks, and nursing care involved. Angioplasty uses a catheter to insert a small balloon or stent to open narrowed arteries, while bypass surgery detours blood flow around blockages using a grafted vein or artery from another part of the body. Both procedures aim to improve blood flow to the heart muscle but carry risks of complications like bleeding, heart attack, or the repaired artery renarrowing over time.