Blood is supposed to clot to help repair a blood vessel that is injured. Clots or thrombi become a problem when they form inappropriately. There are a variety o...learn more »
Magnetic resonance imaging (MRI) is a scanner that takes cross-sectional images of the body. It is used to evaluate tissues of the head, neck, chest, limbs, abd...learn more »
The electrocardiogram (ECG or EKG) is a diagnostic tool that measures and records the electrical activity of the heart in exquisite detail.learn more »
Diagnostic x-rays are safe. But who hasn't wondered about them when undergoing a chest x-ray, mammogram, routine dental x-rays, or an x-ray for a broken bone?
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