Patient Monitor User Manual Monitoring C.O.
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Chapter 16 Monitoring C.O.
16.1 Overview
The cardiac output (C.O.) measurement invasively measures cardiac output and other
hemodynamic parameters by using the Thermodilution method. The Thermodilution method is to
inject a cold solution into the blood circulation system and measure the temperature changes
caused by the cold solution through the thermistor of the pulmonary artery floating catheter, and
the C.O. value is calculated by using the temperature dilution curve.
As C.O. is a variable value, a series of measurements must be carried out to obtain a reliable and
average C.O. value. Always use the average of multiple measurements for thereapy decisions.
The monitor can save a maximum of 6 measurement results.
16.2 C.O. Safety Information
WARNING
1 Make sure that appurtenance applied is in conformity with relevant Medical Device
Safety Requirements.
2 Appurtenance should be avoided from contact with conductive metal body when
being connected or applied.
3 All invasive procedures involve risks to the patient. Use aseptic technique and follow
catheter manufacturer's instructions.
4 The C.O. measurement results may be incorrect during electrosurgery.
5 C.O. floating catheter shall be removed or reinserted after 3 days.
Connector for C.O. cable
C.O. start key
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