14 Monitoring Carbon Dioxide
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2
Connect the cannula, airway adapter, or sample line as appropriate, to the sensor. It will click into
place when seated correctly.
3 To zero the sensor:
– expose the sensor to room air and keep it away from all sources of CO
2
including the
ventilator, the patient's breath and your own.
– in the setup menu for the CO
2
, select Start Zero Cal.
– when you see the message
CO₂ calibration done at <Date and Time> on the status line, the zero
calibration is finished and you can begin monitoring.
4 For intubated patients requiring an airway adapter: Install the airway adapter at the proximal end of the
circuit between the elbow and the ventilator Y-section.
For intubated patients with an integrated airway adapter in the breathing circuit: Connect the male luer
connector on the straight sample line to the female port on the airway adapter.
For non-intubated patients: Place the nasal cannula onto the patient.
For patients prone to mouth breathing use an oral-nasal cannula.
For nasal or oral-nasal cannulas with oxygen delivery, place the cannula on the patient as shown then
attach the oxygen supply tubing to the oxygen delivery system and set the prescribed oxygen flow.