You don't need to take any special steps before having a coronary calcium scan. However, your doctor may ask you to avoid caffeine and smoking for 4 hours before the test.
For the scan, you'll remove your clothes above the waist and wear a hospital gown. You also will remove any jewelry from around your neck or chest.
The NHLBI updates Health Topics articles on a biennial cycle based on a thorough review of research findings and new literature. The articles also are updated as needed if important new research is published. The date on each Health Topics article reflects when the content was originally posted or last revised.