Installation and setup
Page C-24 Operator’s Manual PiCCO
2
Version 3.1
NOTE
Central venous pressure (CVP) is required for calibration of continuous cardiac output (PCCO).
Before performing a thermodilution measurement, pay attention to a current and plausible value.
In cases of a continuous CVP measurement with the PiCCO
2
, the CVP value from the beginning
of the thermodilution measurement is used in order to avoid errors due to, for e.g., adjusting the
3-way-stopcock to which the central venous pressure transducer is connected.
The value of the CVP which is used for calibration is displayed on the thermodilution screen and
can be changed if necessary.
NOTE
Before initial calibration you need to ensure that a zero adjustment for the arterial pressure is
performed and that the pressure transfer works correctly.
CAUTION: If the displayed pulse contour parameters are not plausible, they should be checked
by a thermodilution measurement. The pulse contour cardiac output measurement will be
recalibrated automatically.
Procedure:
1 Press direct access button .
2 Check the blood pressure signal and if necessary flush the PiCCO catheter. If necessary perform a zero
adjustment. Manually input central venous pressure (CVP) if not using continuous CVP measurement.
3 Prepare appropriate injectate solution e.g. 20 ml of room-tempered (<24°C) saline 0.9 %.
4 Check the setting for the used injectate volume and if necessary adjust the volume (Inj. Volume) (see
Figure 26).
L New in version 3.1: The recommended injectate volume is displayed in a help window when the
“xx ml” button is pressed (see Figure 27).
5 Press the START button.
6 When message "Inject XX ml" appears, inject the prepared injectate through the injectate temperature
sensor housing rapidly (< 7 s) and smoothly.
7 To stop an ongoing cardiac output measurement, press the STOP button.
8 Perform 3 to 5 single measurements within 10 minutes as described under points 1 to 6.
If necessary reject invalid measurements: the respective measurement can be activated by selection from the
table, after selecting it once more the measurement is rejected and not included in the PCCO calibration.
Irregular measurements are marked with a "?" and should be reviewed carefully. The remaining
measurements should be distinct, without a high dispersion and they should have a regular and comparable
curve shape (see next page: quality of a thermodilution measurement).
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