baxter Starling - Appendix B - System Specifications and Technical Data; Calculated and Displayed Measurements

B-2 Starling Monitor - User Guide
System Performance Specifications and Accuracy
Measurements Calculated and Displayed
Table B-2 describes the primary measurements that are calculated and displayed by the
Starling device.
Table B-2 Primary Measurements Calculated and Displayed
Parameter Measurement Description
BP
Blood Pressure The pressure exerted by the blood against the walls of the blood vessels.
CI
Cardiac Index
Parameter that relates the cardiac output (CO) to body surface area
(BSA), thus relating heart performance to the size of the individual. The
unit of measurement is liters per minute per square meter
(l/min/m
2
).
CO
Cardiac Output
The volume of blood being pumped by the heart in one minute.
It is equal to the heart rate multiplied by the average stroke volume. The
unit of measurement is liters per minute. CO=HR × SV.
CP
Cardiac Power
Represents the work product generated by the heart and is measured in
units of Watts. It is derived from CO and MAP by the following formula:
CP = CO * MAP/451 (see reference for this formula below table)
a
CPI
Cardiac Power Index
The indexed version of the CP. It is measured in units of Watts/M
2
and is
calculated by dividing CP by the BSA. CPI = CP/BSA
DBP
Diastolic Blood Pressure Diastolic Blood Pressure measurement.
DO
2
I Oxygen Delivery Index
The oxygen delivery index. It is calculated according to the following
formula: DO2I = 1.39 x Hgb x (SpO2/100) x CI x 10.
dX/dt
Instantaneous thoracic
Bioreactance.
The input and output of blood through the thorax at each systole causes
modifications of the electric properties of the thorax, which can be
measured by calculating the electrical Bioreactance. The electrical
Bioreactance of the thorax cyclically changes with each pulsatile
volume of blood ejected from the heart.
Hgb
Hemoglobin concentration in the blood.