Blood pressure

What is blood pressure ?

Blood pressure is a measure of the force that your heart uses to pump blood around your body.

Blood pressure is the force exerted by the blood against the wall of blood vessel

Unit of blood pressure

units are millimeters of mercury (mmHg).

What is Systolic blood pressure ?

is force exerted by arterial walls during systole. It is the maximum pressure during ventricle contraction

What is Diastolic blood pressure ?

is the force exerted by blood against arterial wall during diastole. It is the maximum pressure when the ventricles are relaxed

Normal blood pressure is 120/80 mm of Hg

Systolic pressure is 120 mmHg & diastolic pressure is 80 mmHg

Pulse pressure

Pulse pressure is the difference between systolic & diastolic pressure

Normally, The pulse pressure is 40 mmHg

Cardiac output

It is the amount of blood ejected by heart in 1 minute

Stroke volume

It is the amount of blood ejected by heart in 1 cycle. Normally heart eject 70-80 ml blood in 1 cycle

Cardiac output = stroke volume Χ heart rate

Blood pressure measurement equipment

Sphygmomanometer BP measurement.
Oscillometry-based BP measurement.

Sphygmomanometer BP measurement.

A sphygmomanometer, also known as a blood pressure monitor, or blood pressure gauge, is a device used to measure blood pressure, composed of an inflatable cuff to collapse and then release the artery under the cuff in a controlled manner, and a mercury or aneroid manometer to measure the pressure.

an instrument for measuring blood pressure, typically consisting of an inflatable rubber cuff which is applied to the arm and connected to a column of mercury next to a graduated scale, enabling the determination of systolic and diastolic blood pressure by increasing and gradually releasing the pressure in the cuff.

Oscillometry-based BP measurement.

Is a automatic cuff blood pressure (BP) measurement .

In this approach, a cuff placed on the upper arm is inflated and then deflated while the pressure inside the cuff is measured.

What is blood pressure and Blood pressure measurement equipments