A coronary calcium scoring test is a CT scan of the heart that helps your healthcare provider measure the amount of calcium present in your arteries. A buildup of calcium can narrow the arteries and reduce blood flow to the heart. By knowing if your arteries are showing signs of blockage, we can better predict your risk of developing heart disease, stroke, or heart attack. This test is ordered by your healthcare provider, so we encourage you to ask your primary care provider about whether or not this test is right for you.