CC STUDIO / SCIENCE PHOTO LIBRARY CC STUDIO / SCIENCE PHOTO LIBRARY
Pulse measurement. Doctor takes the pulse rate of a young boy in bed in the paediatric ward of a hospital. The pulse is a series of pressure waves within an artery that corresponds to the contraction of the left ventricle of the heart as it pumps blood around the body. Here, the doctor is recording the pulse in the radial artery near the wrist. Pulse rate and strength is an important measure of the health of the heart and fitness of the patient.
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