17 - 4
â—† Check if the height and weight are appropriate for your patient. Change if necessary. The patient's
height and weight values are required for determining cardiac index (C.I.).
â—† Check that the correct computation constant is entered. The computation constant has a close
relationship with the entered injectate volume, injectate probe type (in-line probe or bath probe) and
temperature. See the Instruction for Use of pulmonary artery catheter to determinate. To change the
computation constant, select Comp Const and then input the correct value. When a new catheter is
used, the computation constant should be adjusted in accordance with the manufacturer’s
instructions for use.
â—† Switch on or off Auto TI. If Auto TI is switched on, the system automatically detects the injectate
temperature, and TI setting is disabled. If Auto TI is switched off, you need to input the injectate
temperature at TI.
â—† Switch on or off Auto Start. If Auto Start is switched on, the monitor automatically takes the C.O.
measurement after establishing a baseline of blood temperature. If Auto Start is switched off, you
need to click the Start button in the C.O. Measure window for a new measurement.
17.6.3 Performing C.O. Measurement
To perform the C.O. measurement, follow this procedure:
1. Select the C.O. numeric area to enter the C.O. Measure menu.
2. Proceed as follows to perform the C.O. measure:
â—† If Auto Start is switched off, select the Start button, and then inject the solution quickly when you
see the message Please Wait. As shown in the figure above, during the measurement, the currently
measured thermodilution curve is displayed. At the end of the measurement, the thermodilution
curve is transferred to one of the 6 measurement windows and the monitor prompts you to wait for a
certain period of time before starting a new measurement.
â—† If Auto Start is switched on, inject the solution quickly when you see the message Ready For New
Set of Measurements. The monitor consecutively takes C.O. measurements automatically without
the need for pressing the Start button between two measurements. A new thermodilution
measurement is possible as soon as the message Inject Now! is displayed on the screen. The monitor
automatically detects further thermodilution measurements.
(1) Average values (2) Historical measurement windows
(3) Current measurement values (4) Current C.O. curve
(5) Prompt message area (6) Buttons
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