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PrimehyourselfhforhyourhTestsh–
hStudyhQuestions
Chapterh41:hOxygenation
FundamentalshofhNursing,h9thhEditionhMU
LTIPLEhCHOICE
1. Ahnursehishteachinghstaffhabouththehconductionhofhthehheart.hInhwhichhorderhwillhthehnur
sehpresenththehconductionhcycle,hstartinghwithhthehfirsthstructure?
1. BundlehofhHis
2. Purkinjehnetwork
3. Intraatrialhpathways
4. Sinoatrialh(SA)hnode
5. Atrioventricularh(AV)hnode
a. 5,h4,h3,h2,h1
b. 4,h3,h5,h1,h2
c. 4,h5,h3,h1,h2 NURSINGTB.COM
d. 5,h3,h4,h2,h1
ANS:hB
ThehconductionhsystemhoriginateshwithhthehSAhnode,htheh“pacemaker”hofhthehheart.hThehelectrica
lhimpulsesharehtransmittedhthroughhthehatriahalonghintraatrialhpathwayshtohthehAVhnode.hIthassists
hatrialhemptyinghbyhdelayinghthehimpulsehbeforehtransmittinghiththroughhthehBundlehofhHishandht
hehventricularhPurkinjehnetwork.
2. Ahnursehishteachinghthehpatienthwithhmitralhvalvehproblemshabouththehvalveshinhthehheart.
hStartinghonhthehrighthsidehofhthehheart,hdescribehthehsequencehofhthehbloodhflowhthroughhthe
sehvalves.
1. Mitral
2. Aortic
3. Tricuspid
NURSINGTB.COM
, FUNDAMENTALShOFhNURSINGh9THhEDITIONhPOTTERhTESThBAN
K
PrimehyourselfhforhyourhTestsh–
hStudyhQuestions
4.hPulmonic
a. 1,h3,h2,h4
b. 4,h3,h2,h1
c. 3,h4,h1,h2
d. 2,h4,h1,h3
ANS:hC
Thehbloodhflowshthroughhthehvalveshinhthehfollowinghdirection:htricuspid,hpulmonic,hmitral,handha
ortic.
3.hAhnursehexplainshthehfunctionhofhthehalveolihtohahpatienthwithhrespiratoryhproblems.hWhichhinfo
rmationhabouththehalveoli’shfunctionhwillhthehnursehsharehwithhthehpatient?
a. Carrieshouthgashexchang
e
b. Regulateshtidalhvolume NURSINGTB.COM
c. Produceshhemoglobin
d. Storeshoxygen
ANS:hA
Thehalveolushishahcapillaryhmembranehthathallowshgashexchangehofhoxygenhandhcarbonhdioxideh
duringhrespiration.hThehalveolihdohnothstorehoxygen,hregulatehtidalhvolume,horhproducehhemoglo
bin.
4. Ahnursehauscultateshhearthsounds.hWhenhthehnursehhearshS2,hwhichhvalveshishthehnursehhearin
ghclose?
a. Aortichandhmitral
b. Mitralhandhtricuspid
c. Aortichandhpulmonic
d. Mitralhandhpulmonic
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, FUNDAMENTALShOFhNURSINGh9THhEDITIONhPOTTERhTESThBAN
K
PrimehyourselfhforhyourhTestsh–
hStudyhQuestions
ANS:hC
Ashthehventricleshempty,hthehventricularhpressureshdecrease,hallowinghclosurehofhthehaortichandhp
ulmonichvalves,hproducinghthehsecondhhearthsound,hS2.hThehmitralhandhtricuspidhproducehthehfirst
hhearthsound,hS1.hThehaortichandhmitralhdohnothclosehaththehsamehtime.hThehmitralhandhpulmonich
dohnothclosehaththehsamehtime.
5. Thehnursehishteachinghabouththehprocesshofhexchanginghgaseshthroughhthehalveolarhcapillar
yhmembrane.hWhichhtermhwillhthehnursehusehtohdescribehthishprocess?
a. Ventilation
b. Surfactant
c. Perfusion
d. Diffusion
ANS:hD
Diffusionhishthehprocesshofhgaseshexchanginghacrosshthehalveolihandhcapillarieshofhbodyhtissues.Ve
ntilationhishthehprocesshofhm o v Ni nUgRgSaI Ns eGs Ti Bn .t Co OaMn d houthofhthehlungs.hSurfactanthishahchemicalhpr
oducedhinhthehlungshtohmaintainhthehsurfacehtensionhofhthehalveolihandhkeephthemhfromhcollapsing
.hPerfusionhishthehabilityhofhthehcardiovascularhsystemhtohcarryhoxygenatedhbloodhtohtissueshandhr
eturnhdeoxygenatedhbloodhtohthehheart.
6. Ahnursehishcaringhforhahpatienthwhohwashinhahmotorhvehiclehaccidenththathresultedhinhcervic
alhtraumahtohC4.hWhichhassessmenthishthehpriority?
a. Pulse
b. Respirations
c. Temperature
d. Bloodhpressure
ANS:hB
Respirationshandhoxygenhsaturationharehthehpriorities.hCervicalhtraumahathC3htohC5husuallyhresult
shinhparalysishofhthehphrenichnerve.hWhenhthehphrenichnervehishdamaged,hthehdiaphragmhdoeshnot
hdescendhproperly,hthushreducinghinspiratoryhlunghvolumeshandhcausinghhypoxemia.hWhilehpulse
NURSINGTB.COM