CO2withCAPNOSTATMainstream,CapnoFlexLF,andDualCO2modules
●RebreathingwhenarebreathingsystemwithoutaCO
2
absorberisusedwith
inadequatefreshgasows.
NOTE
Duringsomesurgicalprocedures,e.g.laparoscopy,CO
2
may
beusedtoinatetheabdomenwhichmayresultinriseof
PaCO
2
duetotheabsorptionofCO
2
intothebloodviathe
vascularwoundbed.Thismayleadtoanincreaseinthe
EtCO
2
.
Preventionofthebreathingsystemcontamination
Youcanuseamicrobiallterbetweentheendotrachealtubeandtheairwayadapter.
Changethelterforeverypatient.Changethepatientcircuitatintervalsgiveninthe
circuitmanufacturer’sdocumentation,andaccordingtoyourhospitalprotocols.
Howtopreventeffectsofhumidity
Duringlowowanesthesia,morerebreathedgascirculatesthroughtheCO
2
absorber.
MorehumidityandheatenterthecircuitfromtheCO
2
absorberandfromtheair
exhaledbythepatient.Also,mechanicalventilationwithactivehumidicationsystem
usedinintensivecareincreasesthehumidityinthebreathingsystem.Watertraps
placedintheinspiratoryandexpiratorylimbsofthebreathingsystemareusefulfor
collectingcondensedwaterfromthebreathingsystemduringlong-lastinganesthesia
ormechanicalventilationwithactivehumidicationsystem.
AquaKnotwiththeDualCO2
●AlwaysusetheAqua-KnotwatertrapwiththeDualCO2module.Thewatertrap
holds7ccofwater.
●ThearrowontheAqua-Knotshowsthedirectionofthegasow.Wheninserting
thewatertrap,thearrowshouldpointtowardthemodule.
●RoutinereplacementofAqua-Knotisnotrequired.
CAPNOSTATMainstreamandDualCO2sensorplacement
Alwayspositionthesensorwithadapterinanuprightpositiontoavoidcollectionof
uidsonthewindowsoftheadapter.Largeconcentrationsofuidsatthispoint
willobstructgasanalysis.
CO
2
troubleshooting
ProblemSolution
Calibrationfails.●Makesureyoucalibrateinastablecondition.
●Checkthatthemoduleisproperlyconnected.
CO
2
waveformseemsabnormal.●Checkthesamplelines,watertrap,andairway
adapters.Replaceifnecessary.
Elevatedbaseline.●Checkthepatientstatus.
●Checkthesensor.
●MakesurethepatientisnotbreathingCO
2
.Check
thattheamountoffreshgasissufcientforthe
patient,andcheckthattheCO
2
absorberisin
goodcondition.
320CARESCAPEModularMonitors2062971-001