How is Blood Pressure Measured?

The blood pressure is measured with two different noninvasive, a technique manually carried out known under the name of auscultation and a known technique automated under the name of oscillation body fat monitors.
Manual Technique - Auscultation
The manual technique employs a sphygmometer (if it held in the hand, then it called a sphygmomanometer) measured the quantity of pressure required to occlude blood cross an artery - usually the artery brachial. The pressure is applied with a band or a cuff around the arm (or of leg).

Because the supplier of care of health reduces the pressure in the cuff, he or she listens to the artery. While blood starts to cross the artery, it creates the turbulence which can be heard by the stethoscope. When the pressure is rather low, turbulence stops and the noises leave. The noises are called the noises of Karotkoff's.

Automated Technique - Oscillation
Automated blood pressure monitors devices use oscillation in much the same way a healthcare provider uses a stethoscope.

The machine detects vibrations (oscillations) nebulisers as pressure is released and blood flow returns. These are the machines you see in pharmacies and in private homes. If you have a digital blood pressure machine of your own, this is the type of machine you have.