Heart attack and ECG trace

Bildnummer 11761892
Heart attack and ECG trace
Heart attack,conceptual computer artwork showing an ECG (electrocardiogram) trace from an unhealthy human heart. An ECG uses electrodes to measure the electrical activity of the heart during the pumping of its chambers,and records it as an electrical wave (green). The waves are irregular and then stop (flatline). This indicates that the heart has stopped beating and the patient is in cardiac arrest. Electrocardiography is a useful tool for the diagnosis of heart disease. The waves of an ECG trace can reveal the nature and location of many cardiac disorders.
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Credit: Science Photo Library / Pasieka, Alfred
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