Cardiac catheterization and coronary angiography can show whether heart arteries are narrowed or blocked. Before the test, ask what question it should answer, whether noninvasive options exist, whether a stent might be placed immediately, and how results would change the treatment plan.

How to use this guide

Use this article to prepare for a conversation with your treating doctor or to decide whether a doctor-reviewed second opinion may help. It is educational and does not diagnose, prescribe, or replace medical care.

Questions to bring forward

  • What decision am I trying to make right now?
  • Which records support the current recommendation?
  • What are the benefits, risks, and alternatives?
  • What would change the recommendation?