The following will demonstrate how to take someone's blood pressure properly. You will need: a sphygmometer with a cuff, (incldued a sphygmometer dial, bulb, and air valve),
          a stethoscope
          a client
Make sure client is wearing appropriate clothing: Short sleeve or sleveless shirts. 
Speed of releasing pressure valve: 2-5 mm Hg/sec 
ALWAYS use left arm for measuring. 
Normal range: Less than 120/80 mm Hg (less than 120 systolic AND less than 80 diastolic)