User Manual

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ExpressionMR400InstructionsforUse MonitoringCO2(LoFlo Option)71
CHAPTER 7
Monitoring CO2 (LoFlo Option)
WhenequippedwiththeLoFloCO2option,thepatient’sairwayrespiratorygascanbe
monitored.Thesystemusessidestreammeasurementstoproduce:
•AfractionalinspiredCO2(FiCO2)value(thelowestreadingoftheCO2waveforminthe
previous20seconds)andanendtidalCO2(EtCO2)valuemeasuredduringexpiration.
•A
respirationrate:Thenumberofbreathsperminute.
•Awaveformoftheconcentrationofcarbondioxide intherespiratorygases.
WARNINGS
Do not use on patients that cannot tolerate the withdrawal of 50ml/min ± 10 ml/min
from the airway or patients that cannot tolerate the added dead space to the airway.
An alarm will sound when the MR400 is too close to the MR magnet and shutdown of
CO2 monitoring will occur. Always position the MR400 as indicated on page 3-2.
Note
LoFlo option-equipped models do not feature a water trap (see page 7-4). If your MR400 is
equipped with a water trap, refer to chapter 9 for CO2 monitoring instructions.
MR400 Preparation for CO2 Monitoring
WhenpreparingtheMR400forCO2monitoring,ensurethatthewastegasport(seepage119)
hasbeenconnectedtoyourfacility’sgasscavengingsystemfordisposalofsampledand
calibrationgases.
Note
Never route the waste gas tubing in a location that will allow it to be an obstruction or stepped on.