GE CARESCAPE - Adjusting the wedge from the cardiac output menu; Stopping the cardiac output measurement; C.O. practicalities; Cardiac output washout curve

Cardiacoutput
4.MakenecessarychangesbyselectingtheHemo,Oxy,orVenttabandthenEdit
Input.
5.YoucanreturntotheCardiacOutputmenubyselectingC.O.orPreviousMenu.
Adjustingthewedgefromthecardiacoutputmenu
TheWedgeselectionisavailableonlywhenthereisaconrmedC.O.measurement
andaninvasivepressurechannelhasbeenlabeledasPA.
1.Selectthecardiacoutputparameterwindow.
2.SelecttheMeasurementtab.
3.SelectWedge.
4.Adjustthewedgesettingsasrequired.
5.YoucanreturntothecardiacoutputmenubyselectingPreviousMenu.
Stoppingthecardiacoutputmeasurement
1.Removethecatheterfromthepatient.
2.Disconnecttheprobepatientcables.
C.O.practicalities
Cardiacoutputwashoutcurve
Thewashoutcurve,whichdisplaysafteraC.O.injection,showsthedropinblood
temperatureastheinjectatemixeswiththeblood.Thepeakofthecurveindicatesthe
maximumdifferenceinthepatient’sbaselinebloodtemperatureandthetemperature
oftheinjectatesolution.Asthemixturepassesthroughthecatheterandthenoutthe
pulmonaryartery,thetemperaturedifferencedecreasesasindicatedbythecurve
returningtothebaseline.Aspikeisdisplayedattheonsetofthecurve,againat
70%ofthemaximumtemperaturedifference,andagainat35%ofthemaximum
temperaturedifference.SpikesarealsovisibleduringanongoingC.O.measurement.
1.Onsetspike
2.70%spike
3.35%spike
Cardiacoutputisinverselyproportionaltotheareaunderthethermodilutioncurve.
Cardiacoutputvarieswithbodysize.Tomoreaccuratelyassesscardiacperformance
forindividualpatients,thecardiacindexisoftenused.
HowtoimprovetheC.O.accuracy
Thefollowinginuencingfactorscaninuencethecardiacoutputaccuracy:
2062971-001CARESCAPEModularMonitors269