Patient connected to an electrocardiograph (ECG) machine,used for measuring the electrical activity of the heart. The recorded signal is displayed on screen and may also be written onto a strip of moving paper. ECG aids in the diagnosis of certain heart diseases by providing characteristic "fingerprint" traces. For example,clinical observations suggesting someone has had a heart attact may be confirmed by an ECG | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library |
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