eHow launches Android app: Get the best of eHow on the go.
Summary: In order to check blood pressure, make sure the person is relaxed and at rest, and then use a sphygmomanometer to pump up the cuff, stopping the flow of blood in the arm. Find out how to measure blood pressure from the point that blood starts flowing until the cuff releases the pressure with help from a physician's assistant in this free video on blood pressure.
Al Hedgepeth is an alumnus of the University of North Carolina at Chapel Hill and earned his degree as a P.A. in 1980. He currently works as a gynecological P.A. for Wake County....read more
"Question is, how do you check a blood pressure? You want the person to be relaxed and at rest when you check their blood pressure. If they just hustled in to your office or into where you are from a parking lot then you don't want to check it immediately, you want to give them ten, fifteen minutes to relax and calm down because your heart speeds up, your pressure goes up as a result of any physical exertion. So, you want first relaxed and calm to do it. If you get initial reading that's elevated, it behooves you to check another one ten to fifteen minutes later to make sure that it has come down or that it's stable and not going up. A lot of times in the medical profession we refer to the white coat effect. Patients come in and they're nervous for being at the doctor's office and they see the white coat and their blood pressure goes up so we wait ten or fifteen, twenty minutes talk to 'em, relax 'em, get things off their mind and make them comfortable and then recheck and usually it has come down within ten to fifteen minutes. The blood pressure is measured by use of an air bladder that goes around your arm snuggly and then it has a sphygmometer which is a pressure, air pressure monitoring gauge that is calibrated to millimeters of mercury and you pump up the blood pressure cuff or bladder, air bladder to actually stop the flow of blood in the arm and then you slowly release the air pressure off by listening to the blood flow in an artery in the arm and the measures you get are when the blood flow starts which is the systolic or higher part of the blood pressure and then you get a diastolic reading which is the low part of the reading and that's when the blood pressure cuff has completely let go of the pressure on the vessel and so you get the baseline pressure of the blood in the blood vessel itself."