Cardiac Catheterization is a medical procedure used to diagnose and treat heart conditions. During this procedure, a thin, flexible tube called a catheter is inserted into a blood vessel, usually in the arm or leg, and guided to the heart. This allows doctors to measure blood pressure, take images, and assess the heart's function. The procedure can also be used to perform interventions, such as opening blocked arteries with a balloon or placing a stent. Cardiac Catheterization is typically done in a hospital setting and may require sedation, but many patients can return home the same day.