What is cardiac catheterization primarily used for?

Cardiac catheterization is primarily a diagnostic procedure that involves inserting a thin tube called a catheter into a blood vessel, either in the arm or leg, and threading it to the heart. This process allows healthcare providers to assess the condition of the heart and the blood vessels, as well as to measure pressures within the heart chambers.

Through cardiac catheterization, doctors can obtain important information about the heart's structure and function. They can visualize the coronary arteries using contrast dye and X-ray imaging, helping to identify blockages or abnormalities. If needed, therapeutic interventions such as angioplasty or stent placement can also be performed during this procedure. Understanding these uses helps clarify why this choice accurately captures the primary purpose of cardiac catheterization as a diagnostic tool in cardiology.