9: Monitoring CO
2
Monitoring EtCO
2
102
Monitoring EtCO
2
To m o n i t o r E t C O
2
:
1 Connect the sensor to the Efficia DFM100 and the sampling line to the sensor (see
“Connecting the CO2 cable and Sample Line” on page 10).
2 Apply the sampling line to the patient.
3 If the Efficia DFM100 is not turned on, turn the Therapy knob to Monitor.
•EtCO
2
needs to be configured to appear in AED Mode.
4 Check that the patient category is appropriate for the patient. If necessary change the Patient
Category to select the appropriate category. See “General Function Buttons” on page 25.
The EtCO
2
measurement automatically turns on when you connect a sensor to the CO
2
port. The
Capnogram is displayed in the configured Wave Sector if available. The measurement values for
EtCO
2
and AwRR are displayed.
Question marks:
- If there is a
in the parameter block and a dashed line in place of the Capnogram on the
display, the waveform source is invalid. Check patient, confirm airway status and examine the
cable and sensor for a good connection. Also check the sampling line to make sure it is
connected to the sensor and not kinked or pinched.
- If there is a
before the measurement and a Capnogram on the display, the sensor is warming
up. As soon as the sensor is warmed up, the
is removed from the display.
Figure 57 EtCO
2
and AwRR
WARNING: Leakages in the breathing system or sampling system may cause the displayed EtCO
2
values to be
significantly too low. Always connect all components securely and check for leaks according to
standard clinical procedures. Displacement of the nasal or combined nasal oral cannulas can cause
lower than actual EtCO
2
readings. Even with combined nasal oral cannulas, the EtCO
2
readings
may be slightly lower than actual in patients breathing through the mouth only.
NOTE: Mainstream and Sidestream sensors detect breaths down to 5 mmHg. For values below 5 mmHg,
you see a in place of the EtCO
2
measurement in the parameter bar.
Alarm Limits - If alarms are turned on, the alarm limits are displayed.
If alarm limits are turned off, the alarms off symbol is displayed.
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