,Chapterg1:gAngIntroductiongtogPhysiology
1. Agpatientgpresentsgwithgdehydration.gWhichgbodygsystemgplaysgagkeygrolegingregulatin
ggwatergbalancegingthegbody?
a) Nervousgsystem
b) Endocrinegsystem
c) Urinarygsystem
d) Cardiovasculargsystem
Answer:
c)gUrinarygsystemgRational
e:
Thegurinarygsystem,gparticularlygthegkidneys,gplaysgagvitalgrolegingregulatinggwatergbalanc
egbygfilteringgbloodgandgeliminatinggexcessgfluidsgandgwaste.gThegkidneysgrespondgtoghor
monesgthatghelpgmaintaingfluidgbalance.
NCLEXgFocus:gPhysiologicalgAdaptationg-gFluidgandgElectrolytegImbalance
2. Duringgagphysicalgexamination,gthegnursegchecksgthegpatient’sgreflexes.gThisgassessmen
tgprimarilyginvolvesgwhichgbodygsystem?
a) Respiratorygsystem
b) Musculargsystem
c) Nervousgsystem
d) Endocrinegsystem
Answer:
c)gNervousgsystemgRational
e:
Thegnervousgsystemgisgresponsiblegforgcontrollinggreflexgactionsgthroughgtheginteractiong
betweengsensorygandgmotorgneurons.gReflexgtestingghelpsgevaluategthegfunctiongofgthegn
ervousgsystem.
NCLEXgFocus:gPhysiologicalgIntegrityg-gNeurosensorygSystem
3. Agpatientgwithghighgbloodgpressuregisgbeinggtreatedgwithgmedicationsgthatgaffectgheartgrat
egandgbloodgvesselgdilation.gThesegmedicationsgaregprimarilygtargetinggwhichgsystem?
a) Digestivegsystem
b) Cardiovasculargsystem
c) Endocrinegsystem
d) Respiratorygsystem
Answer:
b)gCardiovasculargsystemg
Rationale:
Thegcardiovasculargsystemgcontrolsgbloodgpressuregthroughgheartgrategandgbloodgvesselgr
esistance.gMedicationsgforghypertensiongtargetgthegheartgandgbloodgvesselsgtogreducegpre
ssure.
NCLEXgFocus:gPharmacologicalgTherapiesg-gCardiovasculargSystem
4. Whichgprocessgisgangexamplegofgpositivegfeedbackgthatgagnursegmaygobservegduringglab
organdgdelivery?
a) Bloodgclotting
b) Uterinegcontractions
, c) Thermoregulation
d) Regulationgofgbloodgglucose
Answer:
b)gUterinegcontractionsgRa
tionale:
Positivegfeedbackgamplifiesgagresponsegtogachievegagspecificgoutcome.gDuringglabor,gute
rinegcontractionsgincreasegingintensitygandgfrequencyguntilgchildbirthgoccurs,gagclassicgex
amplegofgpositivegfeedback.
NCLEXgFocus:gHealthgPromotiongandgMaintenanceg-gReproductivegSystem
5. Agnursegexplainsgtogagpatientgthatgnormalgbodygtemperaturegisgmaintainedgthroughgwhic
hgfeedbackgmechanism?
a) Positivegfeedback
b) Negativegfeedback
c) Hormonalgregulation
d) Immunegresponse
Answer:
b)gNegativegfeedbackgRatio
nale:
Negativegfeedbackgmechanismsgregulategbodygtemperaturegbyginitiatinggresponsesgtogcool
gdowngorgheatgupgthegbodygwhengdeviationsgfromgnormalgtemperaturegoccur.
NCLEXgFocus:gPhysiologicalgAdaptationg-gThermoregulation
6. Agpatientgundergoinggsurgerygisgatgriskgforgimpairedgoxygengdeliverygtogtissues.gWhic
hgorgangsystemgisgprimarilygresponsiblegforgtransportinggoxygengingthegbody?
a) Respiratorygsystem
b) Cardiovasculargsystem
c) Endocrinegsystem
d) Digestivegsystem
Answer:
b) Cardiovasculargsystem
gRationale:
Thegcardiovasculargsystem,gthroughgbloodgcirculation,gtransportsgoxygengfromgtheglungs
gtogtissues.gRedgbloodgcellsgcarrygoxygen,gwhichgisgessentialgforgcellulargfunction.
NCLEXgFocus:gPhysiologicalgIntegrityg-gOxygenation
7. Duringganginfection,gwhichgsystemgisgmostgresponsiblegforgdefendinggthegbodygagain
stgpathogens?
a) Cardiovasculargsystem
b) Integumentarygsystem
c) Lymphaticgsystem
d) Nervousgsystem
Answer:
c) Lymphaticgsystem
gRationale:
Theglymphaticgsystemgplaysgagcentralgrolegingimmunegdefense,gfilteringgpathogensgandgpr
oducinggimmunegcellsglikeglymphocytesgthatghelpgfightginfections.
NCLEXgFocus:gPhysiologicalgIntegrityg-gImmunegSystem
, 8. Agnursegisgcaringgforgagpatientgwhogisglosinggheatgrapidlygduegtoghypothermia.gWhic
hgprocessgwillgthegbodygmostglikelygusegtogattemptgtogrestoregnormalgtemperature?
a) Positivegfeedback
b) Negativegfeedback
c) Immunegresponse
d) Hormonalgsecretion
Answer:
b)gNegativegfeedbackgRatio
nale:
Negativegfeedbackgmechanismsgwillgworkgtogincreasegbodygtemperaturegthroughgshiverin
ggandgconstrictinggbloodgvesselsgtogconservegheat.
NCLEXgFocus:gPhysiologicalgAdaptationg-gThermoregulation
9. Aftergagmeal,gthegbodygbeginsgthegprocessgofgbreakinggdowngcarbohydratesgforgenerg
y.gWhichglifegprocessgisgthis?
a) Metabolism
b) Growth
c) Differentiation
d) Reproduction
Answer:
a) Metabolism
gRationale:
Metabolismgincludesgthegchemicalgprocessesginvolvedgingbreakinggdowngfoodgmolecules
gtogproducegenergy.gThisgisgcrucialgforgallgbodygactivities.
NCLEXgFocus:gPhysiologicalgIntegrityg-gMetabolism
10. Agpatientgwithgdiabetesgisgunablegtogregulategbloodgglucoseglevelsgeffectively.gThisgpatie
ntghasgangimpairmentgingwhichgprocess?
a) Growth
b) Homeostasis
c) Reproduction
d) Movement
Answer:
b) Homeostasis
gRationale:
Homeostasisgrefersgtogthegbody'sgabilitygtogmaintaingstableginternalgconditions,gsuchgasgbl
oodgglucoseglevels,gthroughgfeedbackgmechanisms.gIngdiabetes,gthisgregulationgisgimpaire
d.
NCLEXgFocus:gPhysiologicalgAdaptationg-gEndocrinegSystem
11. Agpatientgexperiencesgagsuddengdropgingbloodgpressure.gWhatgimmediategfeedbac
kgmechanismgdoesgthegbodygusegtogstabilizegbloodgpressure?
a) Positivegfeedback
b) Negativegfeedback
c) Neutralgfeedback
d) Metabolicgfeedback
Answer:
b)gNegativegfeedbackgRatio
nale:
1. Agpatientgpresentsgwithgdehydration.gWhichgbodygsystemgplaysgagkeygrolegingregulatin
ggwatergbalancegingthegbody?
a) Nervousgsystem
b) Endocrinegsystem
c) Urinarygsystem
d) Cardiovasculargsystem
Answer:
c)gUrinarygsystemgRational
e:
Thegurinarygsystem,gparticularlygthegkidneys,gplaysgagvitalgrolegingregulatinggwatergbalanc
egbygfilteringgbloodgandgeliminatinggexcessgfluidsgandgwaste.gThegkidneysgrespondgtoghor
monesgthatghelpgmaintaingfluidgbalance.
NCLEXgFocus:gPhysiologicalgAdaptationg-gFluidgandgElectrolytegImbalance
2. Duringgagphysicalgexamination,gthegnursegchecksgthegpatient’sgreflexes.gThisgassessmen
tgprimarilyginvolvesgwhichgbodygsystem?
a) Respiratorygsystem
b) Musculargsystem
c) Nervousgsystem
d) Endocrinegsystem
Answer:
c)gNervousgsystemgRational
e:
Thegnervousgsystemgisgresponsiblegforgcontrollinggreflexgactionsgthroughgtheginteractiong
betweengsensorygandgmotorgneurons.gReflexgtestingghelpsgevaluategthegfunctiongofgthegn
ervousgsystem.
NCLEXgFocus:gPhysiologicalgIntegrityg-gNeurosensorygSystem
3. Agpatientgwithghighgbloodgpressuregisgbeinggtreatedgwithgmedicationsgthatgaffectgheartgrat
egandgbloodgvesselgdilation.gThesegmedicationsgaregprimarilygtargetinggwhichgsystem?
a) Digestivegsystem
b) Cardiovasculargsystem
c) Endocrinegsystem
d) Respiratorygsystem
Answer:
b)gCardiovasculargsystemg
Rationale:
Thegcardiovasculargsystemgcontrolsgbloodgpressuregthroughgheartgrategandgbloodgvesselgr
esistance.gMedicationsgforghypertensiongtargetgthegheartgandgbloodgvesselsgtogreducegpre
ssure.
NCLEXgFocus:gPharmacologicalgTherapiesg-gCardiovasculargSystem
4. Whichgprocessgisgangexamplegofgpositivegfeedbackgthatgagnursegmaygobservegduringglab
organdgdelivery?
a) Bloodgclotting
b) Uterinegcontractions
, c) Thermoregulation
d) Regulationgofgbloodgglucose
Answer:
b)gUterinegcontractionsgRa
tionale:
Positivegfeedbackgamplifiesgagresponsegtogachievegagspecificgoutcome.gDuringglabor,gute
rinegcontractionsgincreasegingintensitygandgfrequencyguntilgchildbirthgoccurs,gagclassicgex
amplegofgpositivegfeedback.
NCLEXgFocus:gHealthgPromotiongandgMaintenanceg-gReproductivegSystem
5. Agnursegexplainsgtogagpatientgthatgnormalgbodygtemperaturegisgmaintainedgthroughgwhic
hgfeedbackgmechanism?
a) Positivegfeedback
b) Negativegfeedback
c) Hormonalgregulation
d) Immunegresponse
Answer:
b)gNegativegfeedbackgRatio
nale:
Negativegfeedbackgmechanismsgregulategbodygtemperaturegbyginitiatinggresponsesgtogcool
gdowngorgheatgupgthegbodygwhengdeviationsgfromgnormalgtemperaturegoccur.
NCLEXgFocus:gPhysiologicalgAdaptationg-gThermoregulation
6. Agpatientgundergoinggsurgerygisgatgriskgforgimpairedgoxygengdeliverygtogtissues.gWhic
hgorgangsystemgisgprimarilygresponsiblegforgtransportinggoxygengingthegbody?
a) Respiratorygsystem
b) Cardiovasculargsystem
c) Endocrinegsystem
d) Digestivegsystem
Answer:
b) Cardiovasculargsystem
gRationale:
Thegcardiovasculargsystem,gthroughgbloodgcirculation,gtransportsgoxygengfromgtheglungs
gtogtissues.gRedgbloodgcellsgcarrygoxygen,gwhichgisgessentialgforgcellulargfunction.
NCLEXgFocus:gPhysiologicalgIntegrityg-gOxygenation
7. Duringganginfection,gwhichgsystemgisgmostgresponsiblegforgdefendinggthegbodygagain
stgpathogens?
a) Cardiovasculargsystem
b) Integumentarygsystem
c) Lymphaticgsystem
d) Nervousgsystem
Answer:
c) Lymphaticgsystem
gRationale:
Theglymphaticgsystemgplaysgagcentralgrolegingimmunegdefense,gfilteringgpathogensgandgpr
oducinggimmunegcellsglikeglymphocytesgthatghelpgfightginfections.
NCLEXgFocus:gPhysiologicalgIntegrityg-gImmunegSystem
, 8. Agnursegisgcaringgforgagpatientgwhogisglosinggheatgrapidlygduegtoghypothermia.gWhic
hgprocessgwillgthegbodygmostglikelygusegtogattemptgtogrestoregnormalgtemperature?
a) Positivegfeedback
b) Negativegfeedback
c) Immunegresponse
d) Hormonalgsecretion
Answer:
b)gNegativegfeedbackgRatio
nale:
Negativegfeedbackgmechanismsgwillgworkgtogincreasegbodygtemperaturegthroughgshiverin
ggandgconstrictinggbloodgvesselsgtogconservegheat.
NCLEXgFocus:gPhysiologicalgAdaptationg-gThermoregulation
9. Aftergagmeal,gthegbodygbeginsgthegprocessgofgbreakinggdowngcarbohydratesgforgenerg
y.gWhichglifegprocessgisgthis?
a) Metabolism
b) Growth
c) Differentiation
d) Reproduction
Answer:
a) Metabolism
gRationale:
Metabolismgincludesgthegchemicalgprocessesginvolvedgingbreakinggdowngfoodgmolecules
gtogproducegenergy.gThisgisgcrucialgforgallgbodygactivities.
NCLEXgFocus:gPhysiologicalgIntegrityg-gMetabolism
10. Agpatientgwithgdiabetesgisgunablegtogregulategbloodgglucoseglevelsgeffectively.gThisgpatie
ntghasgangimpairmentgingwhichgprocess?
a) Growth
b) Homeostasis
c) Reproduction
d) Movement
Answer:
b) Homeostasis
gRationale:
Homeostasisgrefersgtogthegbody'sgabilitygtogmaintaingstableginternalgconditions,gsuchgasgbl
oodgglucoseglevels,gthroughgfeedbackgmechanisms.gIngdiabetes,gthisgregulationgisgimpaire
d.
NCLEXgFocus:gPhysiologicalgAdaptationg-gEndocrinegSystem
11. Agpatientgexperiencesgagsuddengdropgingbloodgpressure.gWhatgimmediategfeedbac
kgmechanismgdoesgthegbodygusegtogstabilizegbloodgpressure?
a) Positivegfeedback
b) Negativegfeedback
c) Neutralgfeedback
d) Metabolicgfeedback
Answer:
b)gNegativegfeedbackgRatio
nale:
