ABERRATION FILMS LTD / SCIENCE PHOTO LIBRARY ABERRATION FILMS LTD / SCIENCE PHOTO LIBRARY
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Portable ECG monitor being fitted. Nurse with a patient who is being fitted with a 48-hour Lifecard monitor in a hospital's cardiology department. The monitor, designed to be clipped to the belt, allows continuous electrocardiography (ECG) monitoring. Only three ECG channels are recorded, using the three electrodes shown. This technique is useful for diagnosing sporadic heartbeat disturbances that could be missed by a short examination with a fixed monitor. Photographed in the UK.
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