G-2
Glossary
Plethysmograph Sensor
A device built into the ClearSight Finger Cuff that measures
fluctuations of volume within the finger artery
Pressure Controller (PC2)
The unit worn on the patient’s wrist that connects the Heart
Reference Sensor and ClearSight Finger Cuffs to the Pressure
Unit.
Pump-Unit (PMP)
The central input and output for pressure signals from
noninvasive hemodynamic measurement which
communicates with the EV1000 Monitor.
Pulse Rate (PR)
Number of arterial blood pressure pulses per minute.
Stroke Volume (SV)
Amount of blood ejected from the ventricles with each
contraction.
Stroke Volume Index (SVI)
Stroke volume adjusted for body size.
Stroke Volume Variation (SVV)
Stroke volume variation is the percent difference between
minimum and maximum stroke volume.
Systemic Vascular Resistance (SVR)
A derived measure of impedance to blood flow from left
ventricle (afterload).
Systemic Vascular Resistance Index (SVRI)
Systemic vascular resistance adjusted for body size.
Systolic Pressure (SYS)
Systolic pressure measured from the reconstructed brachial
arterial waveform.
USB
Universal Serial Bus.
Volume Clamp Method
Arterial blood volume is kept constant using the signal from
the photo-plethysmograph and a rapidly changing pressure in
the air bladder.
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