Terumo CDI 550 - Setting the Patient Temperature Mode; Entering the Blood Flow Rate

monitoring a patientchapter 77-8
Setting the patient temperature mode
You can display arterial and venous blood gas values either at actual temperature
(measured) /pH-stat or corrected to 37°C /alpha-stat. Use the “@/37°C” soft key (in
the upper-right corner of the screen) to change the patient temperature mode. When
the monitor is in numeric display mode, either “actual” or “37°C” is displayed next to
the temperature readings. The temperatures displayed are those measured in the
circuit at the sensor site.
Note: The temperature measured by a CDI Shunt Sensor will be that of the shunt/
purge line, which may differ slightly from the temperature in the rest of the circuit be-
cause of the exposure of the shunt line to room air temperatures.
Entering the blood ow rate ( )
Blood ow rate data is used in the calculation of oxygen consumption ( O2) and oxy-
gen delivery (ḊO2). The user chooses the source of blood ow data on the “calcula-
tions” setup screen in setup mode (see Chapter 4 for details). The choices are “None,”
“Manual,” and “Pump.” If “Pump” is specied as the source of ow data (and the CDI
System 550 is connected to a pump, as explained in Appendix C), the user will also
need to specify the particular pump type in the same “calculations” setup screen.
If the “Manual” is specied as the source of ow data, the user can enter the ow rate
manually during a case. To do this (in operate mode), follow these steps:
1 Press the “set ” key.
The background color of the ow value will reverse to black.
2 Use the +, −, , or keys to enter a value.
3 Press √ when you’re finished entering the flow rate.
The oxygen consumption value will be recalculated at the next screen update.
The calculated oxygen consumption and oxygen delivery values will continue to recal-
culate using the same ow rate until the user enters a new ow rate.
Note: If the user chooses “None” for the “ Source” option on the calculations setup
screen, there will be no display of , ḊO2 or O2.
Note: The user will need either one CDI Blood Parameter Module (BPM) and one
CDI H/S Probe, or 2 CDI BPMs to get enough data to calculate oxygen consump-
tion. This assumes the CDI H/S Probe is always placed on the venous side. If only a
CDI H/S Probe and a venous BPM are used, an arterial oxygen saturation value will
be assumed. This value is selectable in the “calculations” page of the setup mode
(“Constant-SaO2”).
Note: The user will need at a minimum one arterial BPM and either a venous BPM
or a CDI H/S probe to get enough data to calculate oxygen delivery. If only an arterial
and a venous BPM are used, a hematocrit value will need to be entered manually.