A coronary artery calcium scan uses a special x-ray machine that can reveal specks of calcium in the walls of the heart’s arteries, an early sign of cardiovascular disease. These tests aren’t appropriate for people who have a very low risk of heart disease or who already have it, because the results are unlikely to change their treatment. But for people who fall somewhere in the middle, a calcium scan may be helpful in deciding whether to take a statin.
To continue reading this article, you must login
Subscribe to Harvard Health Online for immediate access to health news and information from Harvard Medical School.