A healthcare worker measuring blood pressure using a sphygmomanometer.
An anesthetic machine with integrated systems for monitoring of several vital parameters, including blood pressure and heart rate
A digital sphygmomanometer used for measuring blood pressure
Oral glass thermometer
Overview of main complications of persistent high blood pressure
An individual taking their own radial pulse.
Cardiac systole and diastole
Manual sphygmomanometer and stethoscope used to take blood pressure in clinic.
Blood flow velocity waveforms in the central retinal artery (red) and vein (blue), measured by laser Doppler imaging in the eye fundus of a healthy volunteer.
Schematic of pressures in the circulation
A schematic representation of the arterial pressure waveform over one cardiac cycle. The notch in the curve is associated with closing of the aortic valve.
Taking blood pressure with a sphygmomanometer

There are four primary vital signs: body temperature, blood pressure, pulse (heart rate), and breathing rate (respiratory rate), often notated as BT, BP, HR, and RR.

- Vital signs

Blood pressure is one of the vital signs—together with respiratory rate, heart rate, oxygen saturation, and body temperature—that healthcare professionals use in evaluating a patient's health.

- Blood pressure
A healthcare worker measuring blood pressure using a sphygmomanometer.

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