How is a sphygmomanometer used to measure blood pressure?
High blood pressure usually has no symptoms. The only way to tell whether you have high blood pressure is to perform a quick, painless measurement using a device called a sphygmomanometer. This instrument consists of a gauge and a rubber cuff that's placed around your arm or leg and inflated. The doctor or nurse uses a stethoscope to listen for the appearance and disappearance of sound produced by the pulse in your elbow region. That's how the systolic and diastolic blood pressures are determined.
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