AIR METHODS CRITICAL CARE
REVIEW | FLIGHT PHYSIOLOGY AIR
METHODS CRITICAL CARE EXAM
QUESTIONS WITH CORRECT
ANSWERS RATED A+ 2025
Duringmthemmorningmshiftmbrief,mthempilotmstatedmthatmthemcurrentmcombinedmcrewmweightmandmi
ncreasedmdensitymaltitutdemduemtomhightmtemperatures,mthemmaximummpatientmweightmfrommthe
mhelipadmismonlym150mpounds.m
Thismismunderstoodmtombemconsistentmwithmwhatmlaw?
Charles'
Dalton's
Boyle's
Graham'sm-mCORRECTmANSWERSmCharles'mLaw
Charles'mLawmexplainsmthatmasmairmtemperaturemincreases,mthemairmmassmincreasesminmvolumembe
causemthemmoleculesmaremspacedmfartermapart,mcreatingmanmenvironmentmwheremwings,mrotors,ma
ndmpropellersmhavemlessmmoleculesmtomworkmwith,mmakingmthemmlessmefficient.mDalton'smlawmexpl
ainsmgasmmixtures.mBoyle'smLawmexplainsmatmosphericmpressure.mGraham'smlawmexplainsmeffectmo
rmmolecularmweightmdiffusionmandmeffusion
Yooumaremtransportingmampatientmdiagnosedmwithmischemicmbowelmwithmtrappedmperitonealmgas.m
Uponmreachingmcruisemaltitude,mthempatientmstartsmexperiencingmexcruciatingmabdominalmpainmdu
emtomgasmexpansion.mThismphenomenonmcanmbembestmexplainedmbymwhatmlaw?m-
mCORRECTmANSWERSmBoyle'smLaw
Boyle'smlawmexplainsmthemeffectmofmchangingmatmosphericmpressuremonmgasmwithinmamflexiblemcon
tainer.mCharles'mlawmexplainsmthemrelationshipmbetweenmvolumemandmabsolutemtemperaturematmc
onstantmpressure.mHenry'smLawmexplainsmthemrelationshipmbetweenmgasmdissolvingmintomliquidsma
, ndmthempressuremabovemthemliquid.mGraham'smlawmexplainsmeffectmofmmolecularmweightmdiffusionm
andmeffusion
Anmoxygenmtankmthatmwasmstoredmoutsideminmverymcoldmweathermhasmbeenmmovedmindoorsmtomam
muchmwarmermambientmtemperature.mOnemcouldmexpectmtomsee:
Decreaseminmindicatedmpressure
Increaseminmindicatedmpressure
Frozenmtankmvalve
Themtankmremovedmfrommservicem-mCORRECTmANSWERSmIncreaseminmindicatedmpressure
Gay-
Lussac'smLawmexplainsmthemeffectmofmabsolutemtemperaturemchangesmonmgasminmamfixedmcontainerm
withmpressuremincreasingmwithmrisingmtemperature,mandmdecreasingmwithmfallingmtemperature.mIn
mthismcase,monemcouldmexpectmtomseemanmincreaseminmpressure.mThismwouldmnotmcausemfreezingmof
mthemtankmvalve,mnormwouldmthismbemsomethingmthatmwouldmrequiremremovingmthemtankmfrommser
vice.
Youmaremtransportingmanmintubatedmpatientmfrommamsmallmmountain-
sidemhospitalmtomamlargermvalley-
areamhospital.mAftermdescendingmintomthemvalley,myoumnoticemdecreasedmexhaledmtidalmvolumesma
ndmdecreasedmpeakmpressures.mGivenmyourmunderstandingmofmBoyle'smLaw,myoumunderstandmthatm
the:
ETTmcuffmvolumemhasmincreased
ETTmcuffmvolumemhasmdecreased]
ETTmhasmmigratedmintomthemrightmmainstem
ETTmhasmbecomemobstructionm-mCORRECTmANSWERSmETTmcuffmhasmdecreased
REVIEW | FLIGHT PHYSIOLOGY AIR
METHODS CRITICAL CARE EXAM
QUESTIONS WITH CORRECT
ANSWERS RATED A+ 2025
Duringmthemmorningmshiftmbrief,mthempilotmstatedmthatmthemcurrentmcombinedmcrewmweightmandmi
ncreasedmdensitymaltitutdemduemtomhightmtemperatures,mthemmaximummpatientmweightmfrommthe
mhelipadmismonlym150mpounds.m
Thismismunderstoodmtombemconsistentmwithmwhatmlaw?
Charles'
Dalton's
Boyle's
Graham'sm-mCORRECTmANSWERSmCharles'mLaw
Charles'mLawmexplainsmthatmasmairmtemperaturemincreases,mthemairmmassmincreasesminmvolumembe
causemthemmoleculesmaremspacedmfartermapart,mcreatingmanmenvironmentmwheremwings,mrotors,ma
ndmpropellersmhavemlessmmoleculesmtomworkmwith,mmakingmthemmlessmefficient.mDalton'smlawmexpl
ainsmgasmmixtures.mBoyle'smLawmexplainsmatmosphericmpressure.mGraham'smlawmexplainsmeffectmo
rmmolecularmweightmdiffusionmandmeffusion
Yooumaremtransportingmampatientmdiagnosedmwithmischemicmbowelmwithmtrappedmperitonealmgas.m
Uponmreachingmcruisemaltitude,mthempatientmstartsmexperiencingmexcruciatingmabdominalmpainmdu
emtomgasmexpansion.mThismphenomenonmcanmbembestmexplainedmbymwhatmlaw?m-
mCORRECTmANSWERSmBoyle'smLaw
Boyle'smlawmexplainsmthemeffectmofmchangingmatmosphericmpressuremonmgasmwithinmamflexiblemcon
tainer.mCharles'mlawmexplainsmthemrelationshipmbetweenmvolumemandmabsolutemtemperaturematmc
onstantmpressure.mHenry'smLawmexplainsmthemrelationshipmbetweenmgasmdissolvingmintomliquidsma
, ndmthempressuremabovemthemliquid.mGraham'smlawmexplainsmeffectmofmmolecularmweightmdiffusionm
andmeffusion
Anmoxygenmtankmthatmwasmstoredmoutsideminmverymcoldmweathermhasmbeenmmovedmindoorsmtomam
muchmwarmermambientmtemperature.mOnemcouldmexpectmtomsee:
Decreaseminmindicatedmpressure
Increaseminmindicatedmpressure
Frozenmtankmvalve
Themtankmremovedmfrommservicem-mCORRECTmANSWERSmIncreaseminmindicatedmpressure
Gay-
Lussac'smLawmexplainsmthemeffectmofmabsolutemtemperaturemchangesmonmgasminmamfixedmcontainerm
withmpressuremincreasingmwithmrisingmtemperature,mandmdecreasingmwithmfallingmtemperature.mIn
mthismcase,monemcouldmexpectmtomseemanmincreaseminmpressure.mThismwouldmnotmcausemfreezingmof
mthemtankmvalve,mnormwouldmthismbemsomethingmthatmwouldmrequiremremovingmthemtankmfrommser
vice.
Youmaremtransportingmanmintubatedmpatientmfrommamsmallmmountain-
sidemhospitalmtomamlargermvalley-
areamhospital.mAftermdescendingmintomthemvalley,myoumnoticemdecreasedmexhaledmtidalmvolumesma
ndmdecreasedmpeakmpressures.mGivenmyourmunderstandingmofmBoyle'smLaw,myoumunderstandmthatm
the:
ETTmcuffmvolumemhasmincreased
ETTmcuffmvolumemhasmdecreased]
ETTmhasmmigratedmintomthemrightmmainstem
ETTmhasmbecomemobstructionm-mCORRECTmANSWERSmETTmcuffmhasmdecreased
