GE CARESCAPE - Respiration measurement description; Respiration measurement with PSM; Respiration measurement with PDM and TRAM; How to interpret the respiration values

Impedancerespiration
Respirationmeasurementdescription
Whenstartingrespirationmonitoring,thesystem“learns”thepatient’srespiration
pattern.Therespirationrateiscalculatedfromimpedancechangesandarespiration
waveformisdisplayed.
RespirationmeasurementwithPSM
WithimpedancerespirationSensitivitysettoAUTO,twobreathsareaveragedand
theaverageamplitudeoftherespirationwaveformisfound.Detectionsensitivity
isautomaticallysetatonehalfoftheaverageamplitude.Sensitivitydottedlines
displayedonthewaveformshowtheminimumdetectionrangewhichis25%.The
percentageistheratiotothereferencebarontheleftinthewaveformdisplay,which
correspondsto100%.TheusercanmanuallysettheimpedancerespirationSensitivity
to20%,40%,60%,80%,or100%andthesensitivitydottedlinesdisplayedonthe
waveformwillshowtheselecteddetectionrange.Thepercentageisshownwitha
referencebarthatcorrespondsto100%,meaningthatthe100%selectionusesthe
wholedrawingarea.Thebarisontheleftinthewaveformdisplay.
RespirationmeasurementwithPDMandTRAM
Eightbreathsareaveragedandtheaverageamplitudeoftherespirationwaveform
isfound.Detectionsensitivityisautomaticallysetat40%oftheaverageamplitude.
Sensitivitydottedlinesdisplayedonthewaveformshowthis40%detectionrange.
Oncelearningiscomplete,theusercanadjustthedetectionsensitivityto10,20,
30,40,50,60,70,80,or90%.
Howtointerprettherespirationvalues
Thefollowingisanexampleofaregularandevenrespiratorywaveform,withthe
inspirationandexpirationmarkersidentied(1=inspirationmarker,2=expiration
marker).
Respirationtroubleshooting
ProblemSolution
WhatcanIdoiftherespirationmeasurementfails?●Checkelectrodequalityandpositioning.
●Adjustthebreathdetectionsensitivity.During
ventilator-supportedbreathing,therespiration
calculationmaycountonlyventilator-produced
inspirationsandexpirations.
2062971-001CARESCAPEModularMonitors199