Blood pressure gauge

Blood pressure gauge

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Credit: MARK SYKES/SCIENCE PHOTO LIBRARY

Caption: Blood pressure gauge. This dial is part of a sphygmomanometer used to measure blood pressure in millimetres of mercury (mmHg). An inflatable cuff (not seen) is placed around the upper arm and inflated using a pump (lower right) until blood flow in the arm stops. The cuff is then gradually deflated until pulsing blood flow is heard through a stethoscope. The reading on the blood pressure gauge at this point is the systolic pressure, which occurs during a heartbeat. The diastolic pressure, when the heart is relaxed, is taken by deflating the cuff until blood flows smoothly. Blood pressure is an important measure of health.

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Keywords: blood pressure, cardiology, device, diagnosis, diagnostic, diagnostics, dial, equipment, gauge, healthcare, medical, medicine, mercury, mmhg, monitor, one, physiological, physiological measurement, physiology, pump, scale, single, sphygmomanometer, still life, still-life

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