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Problem Solution
Do not see C.O. numeric area on the main
screen
1. Check that the C.O. is set to display in the Screen Setup menu. For
more information, see
27.11The Other Settings.
2. Check that if the C.O. parameter switch is enabled. If not, enable the
C.O. measurement. For more information, see
3.11.1Switching On or Off
a Parameter
.
3.Check that the patient type is adult.
4. Check the connection of C.O. cable, thermodilution catheter and TI
sensor.
C.O. value is inaccurate 1. Check that the thermodilution catheter is positioned properly.
2. Check that the computational constant is proper for current injectate
temperature, injectate volume and injectate probe type.
3. Inject solution rapidly and smoothly.
4. Finish injection within four to five seconds.
5. Inject more volume, or inject colder solution.
6. Check that the height and weight of patient is properly configured.
7. If
Auto TI is switched off, check that the entered temperature is
correct.
C.O. measurement fails 1. Inject more volume, or inject colder solution. Make sure that the
injectate temperature is at least 10°C colder than the patient blood
temperature.
2. Finish injection within four to five seconds.
3. Check the connection of C.O. cable, thermodilution catheter and TI
sensor.
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