,Chapteri1;iBasiciTermsiandiConceptsiofiMechanicaliVentilationiT
estiBank
MULTIPLEiCHOICE
1. Thei body’si mechanismi fori conductingi airi ini andi outi ofi thei lungsiisik
nowniasiwhichiofitheifollowing?
a. Externalirespiration
b. Internalirespiration
c. Spontaneousi ventilation
d. Mechanicali ventilation
ANS:i C
Theiconductioniofiairiiniandioutiofitheibodyiisiknowniasiventilation.i S
inceithei questioni asksi forithei body’simechanism,ithisiwouldibeispon
taneousiventilation.iExternalirespirationiinvolvesi thei exchangei ofi o
xygeni (O2)i andi carboni dioxidei (CO2)ibetweenitheialveoliianditheipul
monaryicapillaries.iInternalirespirationioccursi atithei cellularilevelia
ndiinvolvesi movementi ofioxygenifromitheisystemicibloodiintoitheicel
ls.
DIF: 1 REF:i pg.i3
2. Whichiofitheifollowingiareiinvolvediiniexternalirespiration?
a. Redibloodicellsiandibodyicells
b. Scalenesianditrapezius
muscles
c. Alveolii andi pulmonary
capillaries
d. Externaliobliqueiand
transverseiabdominalimuscles
ANS:i C
Externali respirationi involvesi thei exchangei ofi oxygeni andi carbonidio
xidei(CO2)ibetweenitheialveoliianditheipulmonaryicapillaries.iIntern
alirespirationioccursiatitheicellularileveliandiinvolvesimovementiofio
xygenifromitheisystemicibloodiintoitheicells.
Scalenei andi trapeziusi musclesi arei accessoryi musclesi ofiinspiration
.i Externali obliquei andi transversei abdominali musclesiareiaccessoryi
musclesiofiexpiration.
, DIF: 1 REF:i pg.i3
3. Theigraphithatishowsiintrapleuralipressureichangesiduringin
ormalispontaneousibreathingiisidepictedibyiwhichiofitheifoll
owing?
a.
b.
c.
d.
ANS:iB
Duringi spontaneousi breathingi thei intrapleurali pressurei dropsifro
miabouti-5icmi H2Oiatiend-expirationitoiabouti-10icmiH2Oi atiend-
inspiration.iThei graphidepictediforiansweriBishowsithatichangeifr
omi-5icmiH2Oitoi-10icmiH2O.
DIF: 1 REF:i pg.i4
4. Duringi spontaneousi inspirationi alveolari pressurei (PA)i isi about:
i .
a. -i1icmiH2O
b. +i1icmiH2O
c. 0icmiH2O
d. 5icmiH2O
ANS:i A
-
1icmiH2Oiisitheilowestialveolaripressureiwillibecomeiduringinorm
alispontaneousiventilation.iDuringitheiexhalationiofiainormalispo
ntaneousibreathitheialveolaripressureiwillibecomei+1icmiH2O.
DIF: 1 REF:i pg.i3
5. Theipressurei requireditoi maintainialveolariinflationiisiknowniasiw
hichiofitheifollowing?
a. Transairwayipressurei(PTAi)
b. Transthoracicipressurei(PTT)
c. Transrespiratoryipressurei(PTR)
, d. Transpulmonaryi pressurei (PL)
ANS:iD
Theidefinitioniofitranspulmonaryipressurei(PL)iisitheipressureirequir
editoimaintainialveolariinflation.iTransairwayipressurei(PTAi)iisitheipr
essureigradientirequireditoiproduceiairflowiinitheiconductingi tubes.i
Transrespiratoryi pressurei (PTR)iisithei pressureitoiinflateitheilungsian
diairwaysiduringipositiveipressureiventilation.iTransthoracicipressur
ei(PTT)irepresentsitheipressureirequireditoiexpandioricontractitheilu
ngsianditheichestiwalliatitheisameitime.
DIF: 1 REF:i pg.i3
6. Calculateitheipressureineededitoiovercomeiairwayiresistanceidur
ingipositiveipressureiventilationiwhenitheiproximaliairwayipressu
rei(PAw)iisi35icmiH2Oianditheialveolaripressurei(PA)iisi5icmiH2O.
a. 7icmiH2O
b. 30icmiH2O
c. 40icmiH2O
d. 175icmiH2O
ANS:iB
Theitransairwayipressurei (PTAi)iisi usedi toicalculateitheipressureireq
uireditoiovercomeiairwayiresistancei duringimechanicaliventilation.i
Thisiformulaiisi PTAi =iPawi-iPA.
DIF: 2 REF:i pg.i3
7. Theitermiuseditoidescribeitheitendencyiofiaistructureitoireturnitoiitsi
originaliformiafteribeingistretchedioriactedionibyianioutsideiforceiisi
whichiofitheifollowing?
a. Elastance
b. Compliance
c. Viscousiresistance
d. Distendingipressure
estiBank
MULTIPLEiCHOICE
1. Thei body’si mechanismi fori conductingi airi ini andi outi ofi thei lungsiisik
nowniasiwhichiofitheifollowing?
a. Externalirespiration
b. Internalirespiration
c. Spontaneousi ventilation
d. Mechanicali ventilation
ANS:i C
Theiconductioniofiairiiniandioutiofitheibodyiisiknowniasiventilation.i S
inceithei questioni asksi forithei body’simechanism,ithisiwouldibeispon
taneousiventilation.iExternalirespirationiinvolvesi thei exchangei ofi o
xygeni (O2)i andi carboni dioxidei (CO2)ibetweenitheialveoliianditheipul
monaryicapillaries.iInternalirespirationioccursi atithei cellularilevelia
ndiinvolvesi movementi ofioxygenifromitheisystemicibloodiintoitheicel
ls.
DIF: 1 REF:i pg.i3
2. Whichiofitheifollowingiareiinvolvediiniexternalirespiration?
a. Redibloodicellsiandibodyicells
b. Scalenesianditrapezius
muscles
c. Alveolii andi pulmonary
capillaries
d. Externaliobliqueiand
transverseiabdominalimuscles
ANS:i C
Externali respirationi involvesi thei exchangei ofi oxygeni andi carbonidio
xidei(CO2)ibetweenitheialveoliianditheipulmonaryicapillaries.iIntern
alirespirationioccursiatitheicellularileveliandiinvolvesimovementiofio
xygenifromitheisystemicibloodiintoitheicells.
Scalenei andi trapeziusi musclesi arei accessoryi musclesi ofiinspiration
.i Externali obliquei andi transversei abdominali musclesiareiaccessoryi
musclesiofiexpiration.
, DIF: 1 REF:i pg.i3
3. Theigraphithatishowsiintrapleuralipressureichangesiduringin
ormalispontaneousibreathingiisidepictedibyiwhichiofitheifoll
owing?
a.
b.
c.
d.
ANS:iB
Duringi spontaneousi breathingi thei intrapleurali pressurei dropsifro
miabouti-5icmi H2Oiatiend-expirationitoiabouti-10icmiH2Oi atiend-
inspiration.iThei graphidepictediforiansweriBishowsithatichangeifr
omi-5icmiH2Oitoi-10icmiH2O.
DIF: 1 REF:i pg.i4
4. Duringi spontaneousi inspirationi alveolari pressurei (PA)i isi about:
i .
a. -i1icmiH2O
b. +i1icmiH2O
c. 0icmiH2O
d. 5icmiH2O
ANS:i A
-
1icmiH2Oiisitheilowestialveolaripressureiwillibecomeiduringinorm
alispontaneousiventilation.iDuringitheiexhalationiofiainormalispo
ntaneousibreathitheialveolaripressureiwillibecomei+1icmiH2O.
DIF: 1 REF:i pg.i3
5. Theipressurei requireditoi maintainialveolariinflationiisiknowniasiw
hichiofitheifollowing?
a. Transairwayipressurei(PTAi)
b. Transthoracicipressurei(PTT)
c. Transrespiratoryipressurei(PTR)
, d. Transpulmonaryi pressurei (PL)
ANS:iD
Theidefinitioniofitranspulmonaryipressurei(PL)iisitheipressureirequir
editoimaintainialveolariinflation.iTransairwayipressurei(PTAi)iisitheipr
essureigradientirequireditoiproduceiairflowiinitheiconductingi tubes.i
Transrespiratoryi pressurei (PTR)iisithei pressureitoiinflateitheilungsian
diairwaysiduringipositiveipressureiventilation.iTransthoracicipressur
ei(PTT)irepresentsitheipressureirequireditoiexpandioricontractitheilu
ngsianditheichestiwalliatitheisameitime.
DIF: 1 REF:i pg.i3
6. Calculateitheipressureineededitoiovercomeiairwayiresistanceidur
ingipositiveipressureiventilationiwhenitheiproximaliairwayipressu
rei(PAw)iisi35icmiH2Oianditheialveolaripressurei(PA)iisi5icmiH2O.
a. 7icmiH2O
b. 30icmiH2O
c. 40icmiH2O
d. 175icmiH2O
ANS:iB
Theitransairwayipressurei (PTAi)iisi usedi toicalculateitheipressureireq
uireditoiovercomeiairwayiresistancei duringimechanicaliventilation.i
Thisiformulaiisi PTAi =iPawi-iPA.
DIF: 2 REF:i pg.i3
7. Theitermiuseditoidescribeitheitendencyiofiaistructureitoireturnitoiitsi
originaliformiafteribeingistretchedioriactedionibyianioutsideiforceiisi
whichiofitheifollowing?
a. Elastance
b. Compliance
c. Viscousiresistance
d. Distendingipressure
