Very small amount: However, a coronary calcium scan should only be done in the presence of intermediate or high risk of having coronary artery disease, Asymptomatic individuals without at least 3 risk factors for coronary artery disease (Diabetes, Hypertension, tobacco use, elevated cholesterol, Obesity, etc.) have a very high likelihood of having a falsely positive scan, thus rendering an abnormal scan unreliable.
Answered 6/24/2014
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