M
NR 507 MIDTERM EXAM Advanced
m m m m
pathophysiology (questions and answers)latest
m m m m
2022-2023 A+ m
QUIZm1
Themlungmisminnervated mbymthemparasympatheticmnervousmsystemmviamwhichmnerve?
VagusmP
hrenicm
Brachial
mPectora
l
QUIZm2
Fibersmof mthemparasympatheticmdivisionmof mthemautonomicmnervousmsystemm(ANS)mtravelonlym
inmthemvagusmnervemtomthemlung.
What mismthemactionmof murodilatin?
Urodilatinmcausesmvasoconstrictionmof mafferent marterioles.
mIt mcausesmvasodilationmof mthemefferent marterioles.
UrodilatinminhibitsmantidiureticmhormonemsecretioN
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It minhibitsmsalt mand mwatermreabsorption.
Urodilatinm(amnatriureticmpeptide)minhibitsmsodiummand mwatermreabsorptionmfrommthemme
dullarympart mof mcollectingmduct,mtherebymproducingmdiuresis.mIt mismnot minvolved minmthemac
tionsmdescribed mbymthemothermoptions.
QUIZm3
What mismthemdirectmactionmof matrialmnatriureticmhormone
?
Sodiummretention
Sodiummexcretio
m
nmWatermretention
Watermexcretion
m
Atrialmnatriureticmpeptidem(ANP)mand mbrainmnatriureticmpeptidem(BNP)minhibit mthemsecretionmof
renin,minhibit mangiotensin-
induced msecretionmof maldosterone,mvasodilatemthemafferent mand mconstrictmthemefferentmglomerular
marterioles,mand minhibit msodiummand mwatermabsorptionbymkidneymtubules.
Themothermactionsmaremnot mamresult mof mthematrialmnatriureticmhormone.mQ
UIZm4
Which statement best describes a Schilling test?
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Administrationmof mradioactivemcobalaminmand mthemmeasurement mof mitsmexcretionminmtheurinemto
mmtest mformvitaminmB 12m deficiency
Measurement mof mantigen-antibodymimmunemcomplexesminmthemblood mtomtest mformhemolyticanemia
Measurement mof mserummferritinmand mtotalmiron-
bindingmcapacityminmthemblood mtomtest mformironmdeficiencymanemia
Administrationmof mfolatemand mmeasurement minm2mhoursmof mitsmlevelminmamblood msamplemtomtest mf
ormfolicmacid mdeficiencymanemia.
ThemSchillingmtest mindirectlymevaluatesmvitamin mB12m absorptionmbymadministeringmradioactivemB1
2mand mmeasuringmexcretionmin mthemurine.m Thismselectionmismthemonlymoptionmthat maccuratelymdescri
besmamSchillingmtest.
QUIZm5
Hemolyticmdiseasemof mthemnewbornm(HDN)mcanmoccurmif mthemmother:
IsmRh-positivemand mthemfetusmismRh-negative
IsmRh-negativemand mthemfetusmismRh-positive
HasmtypemAmblood mand mthemfetusmhasmtypemO
m
HasmtypemABmblood mand mthemfetusmhasmtypemB
HDN mcanmoccurmonlymif mantigensmonmfetalmerythrocytesmdiffermfrommantigensmonmmaternalmery
throcytes.mMaternal-
fetalmincompatibilitymexistsmonlymif mthemmothermand mfetusmdifferminABO mblood mtypemormif mthemf
etusmismRh-positivemand mthemmothermismRh-
negative.mThismerythrocytemincompatibilitymdoesmnot mexist minmanymof mthemothermoptions.
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QUIZ 6 m
2m/m2mpts
WhichmT-lymphocytemphenotypemismthemkeymdeterminant mof mchildhood masthma?
Clustermof mdifferentiationm(CD)m4mT-helpermTh1m lymphocytes
CD4mT-
helpermTh2m lymphocytesmCD8mcy
totoxicmTmlymphocytesmMemorym
Tmlymphocytes
AsthmamdevelopsmbecausemthemTh2m responsem(inmwhichmCD4mT-helpermcellsmproducemspecific
cytokines,msuchmas minterleukinm[IL]–4,mIL-5,mand mIL-
13)mpromotesmanmatopic mandallergicmresponsemin mthemairways.m Thismselectionm ismthemonl
ymoptionmthat maccuratelymidentifiesmthemappropriatemT-lymphocytemphenotype.
QUIZ 7 m
2m/m2mpts
Perceived mstressmelicitsmanmemotional,manticipatorymresponse mthat mbeginsmwhere?mPrefro
ntalmcortex
Anteriormpituitary
Limbicmsystem
4