Ectopic Heartbeat
Alternate Names : Extrasystole, Premature Beats, Premature Contraction, PVB (Premature Ventricular Beat), PVC (Premature Ventricular Contraction)
Pictures & Images
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Heart, Front View
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The external structures of the heart include the ventricles, atria, arteries and veins. Arteries carry blood away from the heart while veins carry blood into the heart. The vessels colored blue indicate the transport of blood with relatively low content of oxygen and high content of carbon dioxide. The vessels colored red indicate the transport of blood with relatively high content of oxygen and low content of carbon dioxide.
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Electrocardiogram (ECG)
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A test that measures the electrical activity of the heart. This includes the rate and regularity of beats as well as the size and position of the chambers, any damage to the heart, and effects of drugs or devices to regulate the heart.
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