16 - 1
16 Monitoring Carbon Dioxide (CO
2
)
16.1 CO
2
Safety Information
• Route all tubing away from the patient’s throat to avoid strangulation.
• Remove the airway sample line from the patient’s airway while nebulized medications are being
delivered.
• EtCO
2
values measured from the CO
2
module may differ from those of from the blood gas analysis.
• The CO
2
module automatically suppresses physiological alarms until breathing waves have been
detected. Make sure that a patient is properly connected when monitoring with the CO
2
module.
16.2 Measuring Sidestream CO
2
16.2.1 Preparing to Sidestream CO
2
Measurement
• Do not apply adult or pediatric sampling line to the neonate patient. Otherwise, patient injury could
result.
• Connect the gas outlet to the scavenging system when measuring CO
2
using the sidestream CO
2
module.
• To extend the lifetime of the sampling line and CO
2
module, set the operating mode to Standby
mode when CO
2
monitoring is not required.
• If not necessary, do not disconnect the CO
2
adapter from the equipment after the first installation.
This reduces the risk of the CO
2
adapter becoming lost or damaged.
• When sample gas of 37 °C, sample flowrate of 50 ml/min, room temperature of 23 °C, 100% RH, the
sampling line with a general type should be replaced once at most every 8 hours, and the sampling
line with a humidified type should be replaced once at most every 72 hours.
16.2.2 Zeroing the Sidestream CO
2
Module
• The CO
2
module temporally stops measuring during zeroing.
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