Measuring Blood Pressure

Simple medical procedure.  A constricting cuff is wrapped around the upper arm and a stethoscope is used to listen for the flow of blood in the brachial artery.

The bulb is used to force air into the cuff, and the cuff pressure is measured using a gauge. The bulb is pumped until a pressure of 180 mm of mercury is attained. For most people, blood will not flow through the arm when