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NUR 445 Exam 2 COMPLETE EXAM QUESTIONS WITH DETAILED VERIFIED ANSWERS (100% CORRECT ANSWERS) ALREADY GRADED A+

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NUR 445 Exam 2 COMPLETE EXAM QUESTIONS WITH DETAILED VERIFIED ANSWERS (100% CORRECT ANSWERS) ALREADY GRADED A+

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NUR 445 Exam 2 COMPLETE EXAM
QUESTIONS WITH DETAILED
VERIFIED ANSWERS (100% CORRECT
ANSWERS) ALREADY GRADED A+
Whatmismthemdefinitionmofmaffinity?m-mCORRECTmANSWERSmthemattractionmbetweenmHgbmandmO2



WhatmdoesmHgbmhavemanmaffinitymto?m-
mCORRECTmANSWERSmHgbmhasmanmattractionmformO2mmolecules




Whatmdoesmthemoxyhemoglobinmdissociationmcurvemrepresent?m-
mCORRECTmANSWERSmrelationshipmbetweenmPaO2mandmSaO2




WhatmismPaO2?m-mCORRECTmANSWERSmpartialmpressuremofmarterialmO2m(arterialmO2mtension)



WhatmismSaO2?m-mCORRECTmANSWERSmHgbmsaturation



WhatmdoesmP50mrepresent?m-
mCORRECTmANSWERSmmeasuresmwhenmHgbmism50%msaturatedmwithmO2




WhenmdoesmthemP50mchange?m-mCORRECTmANSWERSmwhenmphysiologicmfactorsmaremaltered



WhatmdoesmamleftmshiftmonmthemdissociationmcurvemdomtomthemaffinitymofmO2mtomhemoglobin?m-
mCORRECTmANSWERSmincreasesmaffinitym=mpreventsmreleasemtomtissues




WhatmdoesmamrightmshiftmonmthemdissociationmcurvemdomtomthemaffinitymofmO2mtomhemoglobin?m-
mCORRECTmANSWERSmdecreasesmaffinitym=mreadilymreleasemtomtissues

,Whatmcausesmamleftmshiftmonmthemdissociationmcurve?m-
mCORRECTmANSWERSmalkalosis,mhypothermia,mhypocapnia,mdecreasedm2,3mDPG




Whatmcausesmamrightmshiftmonmthemdissociationmcurve?m-
mCORRECTmANSWERSmacidosis,mhyperthermia,mhypercapnia,mincreasedm2,3-DPG




Whatmaremthreemcomponentsmofmoxygenation?m-
mCORRECTmANSWERSmpulmonarymgasmexchange,mO2mdelivery,mO2mconsumption




Whatm2mproblemsminmoxygenationmdoesmthemnursemassessmformandmintervene?m-
mCORRECTmANSWERSmdecreasedmO2msupply,mincreasedmO2mdemand




Whatmismthemdefinitionmofmoxygenation?m-
mCORRECTmANSWERSmthemusemofmO2mformenergymthroughmaerobicmmetabolism




Whatmaremthemtwomgoalsminmthemassessmentmofmoxygenation?m-
mCORRECTmANSWERSmtomdeterminemthemoverallmadequacymofmoxygenationmandmtomdeterminemwh


ichmcomponentmofmoxygenationmdysfunctionmshouldmbemmanipulated



Whatmaremthemthreemcomponentsmofmpulmonarymgasmexchange?m-
mCORRECTmANSWERSmventilation,mdiffusion,mperfusion




Whatmismthemdefinitionmofmventilation?m-
mCORRECTmANSWERSmmovementmofmairmbetweenmthematmospheremandmthemlungs




Whatmismthemactualmworkmofmbreathingmcalledm(usingmthemmuscles,mlungs,mairway,mnervousmsyste
m)?m-mCORRECTmANSWERSmventilation

,Whatmismthemdefinitionmofmdiffusion?m-
mCORRECTmANSWERSmmovementmofmgasmacrossmpressuremgradientmfrommareamofmhighmconcentrat


ionmtomlowmconcentration



WhatmismitmcalledmwhenmO2mmovesmfrommalveolimtompulmonarymcapillaries?m-
mCORRECTmANSWERSmdiffusion




Whatmismthemdefinitionmofmperfusion?m-
mCORRECTmANSWERSmpulmonarymperfusionmofmpulmonarymcapillaries;mflowmofmbloodmtomtissues/


organs



Whatmismperfusionmaffectedmby?m-mCORRECTmANSWERSmHgb,mO2maffinity,mandmbloodmflow



Whymismthemmatchingmofmventilationmtomperfusionmessentialmformgasmexchange?m-
mCORRECTmANSWERSmwhenmtheymaremnotmmatched,moxygenmbecomesmimpaired




Whenmmightmventilationmtomperfusionmmismatchingmoccur?m-
mCORRECTmANSWERSmPE,mpneumothorax,mhypoxemia




Whatmaremthemcomponentsmofmoxygenmdelivery?m-
mCORRECTmANSWERSmCO,mCaO2,mANSminnervation,mauto-regulation




Whatmismafterload?m-mCORRECTmANSWERSmresistancemventriclempumpsmblood



Whatmismthemnormalmvaluemformafterload?m-mCORRECTmANSWERSm800-1200



Whatmismcardiacmoutput?m-mCORRECTmANSWERSmamountmofmbloodmpumpedmeachmminute

, Whatmismthemnormalmvaluemformcardiacmoutput?m-mCORRECTmANSWERSm4-8



WhatmismCaO2?m-mCORRECTmANSWERSmTotalmO2mcarriedminmarterialmblood



WhatmismcombinedmSaO2mandmPaO2?m-mCORRECTmANSWERSmCaO2



Whatmismcontractility?m-mCORRECTmANSWERSmthemforcemofmcontractions



WhatmismDO2?m-
mCORRECTmANSWERSmprocessmofmO2mtransportmtomcells,mutilizingmCO,mCaO2,mautoregulation,mand


mANSminnervation




WhatmismthemproductmofmCOmandmCaO2?m-mCORRECTmANSWERSmDO2



WhatmismHgbO2?m-mCORRECTmANSWERSmhemoglobinmfullymsaturatedmwithmO2



WhatmismSaO2/SpO2?m-mCORRECTmANSWERSmratiomofmHgbO2mtomtotalmHgb



WhatmismthemdifferencembetweenmSaO2mandmSpO2?m-
mCORRECTmANSWERSmSpO2mmeansmobtainedmthroughmpulsemoximetry,mwheremSaO2mismviamarteria


lmblood



Whatmismstrokemvolume?m-mCORRECTmANSWERSmvolumempumpedmwithmeachmbeat



Whatmismthemnormalmvaluemofmstrokemvolume?m-mCORRECTmANSWERSm50-100



WhatmismthemnormalmvaluemofmHgb?m-mCORRECTmANSWERSm12-17

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