PatientSpirometry
●x=Paw
●y=Vol
TypicalpediatricPaw-Volloop
Inpediatricuse,thescalesforpressureandvolumearedifferentfromthoseofthe
adultuse.Pediatricpatientshaverelativelyhighairwaypressuresduetothevery
smallendotrachealtube.Usingaproportionallyhigherscaleforpressurethanfor
volumemakesitpossibletodrawpediatricloopswithashapethatissimilartothat
ofadultloops.
Typically:
●Highairwaypressure(smalldiameterofthetube)
●Lowcompliance
●Insp>Exp(leakaroundtube)-loopremainsopen
●x=Paw
●y=Vol
Flow-Volphases
Flow-Volloopillustratestherelationshipbetweenowandvolume.Inspiratoryow
showsthetypeofowpatternusedbytheventilator,andexpiratoryowindicates
theresistanceduringexpiration.Allow-restrictiveincidents(airwayobstruction,
intrinsicPEEP)arevisibleintheFlow-Volloop.
2062971-001CARESCAPEModularMonitors335