Cardiac catheterization is a procedure in which a long, flexible tube (catheter) is put into a blood vessel. The doctor then guides the catheter into the heart to find and treat heart problems. Dr. John Thomson, interventional cardiologist, answers common questions about cardiac catheterization. #CardiacCatheterization #JohnsHopkinsChildrensCenter https://hopkinschildrens.org/heart 0:06 What is cardiac catheterization? 0:32 Why might a child need a cardiac catheterization? 0:53 When is cardiac catheterization used? 1:19 Is cardiac catheterization painful? 1:47 Are there risks associated with the procedure? 2:20 How should a child prepare? 2:48 What happens during the procedure? 3:24 What happens after cardiac catheterization?