Exam 1: NU606/ NU 606 (New 2025/ 2026 Update) Advanced Pathophysiology Guide| Qs & As| Grade A| 100% Correct (Verified Answers)- Regis

Examl1:lNU606/lNUl606l(NewlUpdate)l
AdvancedlPathophysiologylGuide|lQsl&lAs|l
GradelA|l100%lCorrectl(VerifiedlAnswers)l–
lRegis

QUESTION
Whatlhappensltolaldrugloncelitlislabsorbedlintolthelblood?


Answer:
Oncelinlthelbloodstream,ldrugslareltransportedlbylthelcirculatinglbloodlthroughlvariouslpathwa
ys,lbranchinglofflintoldifferentlorganslorltissues.l
Dependinglonlthelspecificlcharacteristicsloflaldrug,lsomelmaylbellostltemporarilylinlstoragelare
aslsuchlaslfattyltissuel(e.g.,lanesthetics)lorlmaylbelquicklylmetabolized.l
Eventually,ltheldruglreachesltheltargetlorganlorltissue,lmoveslintolthelinterstitiallfluid,landlexert
slitsleffect.l
Mostldrugslarelgraduallylmetabolizedlandlinactivatedlinlthelliverlandlthenlexcretedlinlthelkidne
ys—alfewlinlthelbilelorlfeces.




QUESTION
Mannerlinlwhichlmanyldrugslexertltheirleffectslatlalcellularllevel?


Answer:
Drugslinteractlwithlnaturallspecificltissuelreceptorslandlactlbyleitherl(a)lstimulatinglthelreceptor
s,lincreasinglbiologiclactivity;lorl(b)lblockinglthelreceptorlsites,ldecreasinglactivity.




QUESTION
wherelarelmostldrugslmetabolized

,Answer:
liver




QUESTION
Howlarelmostldrugslorlmetaboliteslexcretedlfromlthelbody?


Answer:
bylthelkidneys




QUESTION
Howlcanlliverldiseaselaffectldruglactivity?


Answer:
Diseaseloflthelliverlcouldlimpairlorlslowldrug
metabolism;ltherefore,ltheldruglislactivellonger.lThislprolongsltheldrug'sleffects.lIflthelindividu
allisltakingltheldruglregularly,lbloodllevelslwilllgraduallylincrease,lpossiblylresultinglinltoxiclef
fects.l
Liverldiseaselmaylresultlinldecreasedlproductionloflplasmalproteins.lThislresultslinldecreasedlp
roteinlbinding,lresultinglinlincreasedlfreeldruglinlcirculationlandlthereforelincreasedldrugleffect
s.




QUESTION
Howlcanlkidneyldiseaselaffectldruglactivity?


Answer:
Kidneyldiseaselmaylinterferelwithldruglexcretion—
theldruglandlitslmetaboliteslcouldlaccumulate,lresultinglinlincreasedlandlprolongedldrugleffects.




QUESTION

,Whylarelpatientslwithlchronicllungldiseaselconsideredltolbelalhighlrisklforlcomplicationslwhenl
theylreceivelgenerallanesthetic?


Answer:
Inhalationlanestheticslarelgenerallylexcretedlvialthellungs;litlwouldlbeldifficultltolpredictlthelin
dividual'slresponse.lTherelwouldlbelproblemslassessinglbothltheldosagelandlthelratelofldruglre
moval.lIntravenouslanestheticsldepresslthelrespiratorylcenter.lThislcouldlcauseladditionallhypox
ialandlincreaselthelrisklforldevelopinglacidosis.




QUESTION
Influencelonldruglaction:lage


Answer:
newbornslandlbabies:immaturelliverlandldrugleffectslmoreldifficultltolpredict;lalsolhavelmuchls
mallerlbodylmass;l
elderly:lmaylhaveldiseaseslthatlinterferelwithldruglmetabolismlandlexcretion;l
alsolmorellikelyltolbeltakinglmorelthanlonelmedication,lincreasinglthelpossibilitylofldruglintera
ctions




QUESTION
Influencelonldruglaction:lbodylweight


Answer:
Smallerlindividualslrequirellesslmedication—
forlchildren,lgenerallyltheldosagelislcalculatedlaccordingltolbodylweight.




QUESTION
Influencelonldruglaction:lsex


Answer:
Pregnantlwomenlshouldlavoidldruglusagelwheneverlpossiblelbecauselmanyldrugslcrosslthelplac
entalandlmaylcauselteratogenicleffects.

, Breastfeedinglwomenlshouldlalsolavoidldruglusebecausemanydrugsareexcreted,tosomeldegree,li
nlmilklandlcanlaffectlthelchild.
Genderldifferences—metabolism,lpercentagelbodylfat,lpercentagelbodylfluids




QUESTION
Influencelonldruglaction:lpsychologicallfactors/emotionallstate


Answer:
Iflanlindividuallbelieveslaldruglislgoingltolbeleffective,lthislwillllikelylhavelalpositiveleffect;lth
elconverselisltrue.l
Positivelsuggestionlorlreinforcementlthereforeloftenlusefull"placebo"leffect




QUESTION
Influencelonldruglaction:lpresenceloflheartldisease


Answer:
Heartldiseaselmaylimpairlcirculation,lresultinglinldecreasedldistribution,lmetabolism,landlexcre-
ltionlofldrugs.




QUESTION
Influencelonldruglaction:ltimelofladministrationl(inlrelationltolmeals,ltimeloflday)


Answer:
Somelmedicationslshouldlbeltakenlwithlfood,lwhereaslotherslmustlbeltakenlonlanlemptylstomac
hltolpreventlfoodlinteractions.lTherefore,litlislimportantltolalwayslconfirmlwithlalpharmacist,ln
urse,lorlphysician.
Certainldrugslshouldlnotlbeltakenlatlbedtime,le.g.,ldiureticsl(waterlpills,lstimulants).
Antibioticslshouldlbelevenlylspacedlthroughoutlthelday.




QUESTION