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Chapter 1: Principles of Pharmacology
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MultiplevChoice
1. refer(s)vtovspecificvmolecularvchangesvthatvoccurvwhenvavdrugvbindsvtovavpart
icularvtargetvsitevorvreceptor,vwhile
arevthevresultingvwidespreadvalterationsvinvfunction.
a. Drugvaction;vtherapeuticveffects
b. Sideveffects;vdrugveffects
c. Therapeuticveffects;vsideveffects
d. Drugvaction;vdrugveffects
Answer:vd
TextbookvReference:vPharmacology:vThevSciencevofvDrugvAction
2. Aftervdrugvadministrationvhasvoccurred,vthevamountvofvdrugvinvthevbloodvthatvisvfreevtovb
indvatvspecificvtargetvsitesvisvreferredvtovas
a. thevtherapeuticvdose.
b. first-passveffects.
c. bioavailability.
d. ED50.
Answer:vc
TextbookvReference:vPharmacokineticvFactorsvDeterminingvDrugvAction
3. Thevspecificvmolecularvchangesvthatvoccurvwhenvavdrugvbindsvtovavparticularvtargetvsitevo
rvreceptorvarevreferredvtovas
a. drugveffects.
b. drugvaction.
c. sideveffects.
d. placeboveffects.
Answer:vb
TextbookvReference:vPharmacology:vThevSciencevofvDrugvAction
4. Whichvofvthevfollowingvisvnotvavpossiblevexplanationvforvplaceboveffects?
a. Pavlovianvconditioning
b. Geneticvvariation
c. Drugvcompetition
d. Expectationvofvoutcome
Answer:vc
TextbookvReference:vPharmacology:vThevSciencevofvDrugvAction
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5. The administrationvofvoxytocinvhasvbeenvproposedvasvavtreatmentvforvautism.
a. intravenous
b. oral
c. intranasal
d. intracerebral
Answer:vc
TextbookvReference:vPharmacokineticvFactorsvDeterminingvDrugvAction
6. Whichvfactorvdoesvnotvaffectvthevpharmacokineticsvofvavdrug?
a. Routevofvadministration
b. Lipidvsolubility
c. Depotvbinding
d. Drugvaction
Answer:vd
TextbookvReference:vPharmacokineticvFactorsvDeterminingvDrugvAction
7. First-passvmetabolismvoccursvwhenvdrugsvarevtaken
a. orally.
b. intravenously.
c. subcutaneously.
d. nasally.
Answer:va
TextbookvReference:vPharmacokineticvFactorsvDeterminingvDrugvAction
8. Thevareavpostremavisvonevareavinvthevbrainvwherevthe isvnotvcomplete.
a. cerebrospinalvfluid
b. blood–brainvbarrier
c. choroidvplexus
d. phospholipidvmembrane
Answer:vb
TextbookvReference:vPharmacokineticvFactorsvDeterminingvDrugvAction
9. First-passvmetabolismvoccursvwithvorallyvadministeredvdrugsvbecause
a. theirvabsorptionvisvslowedvbyvfood.
b. drugsvabsorbedvintovthevbloodstreamvfromvthevstomachvgovtovthevlivervonvthevwayvtovg
eneralvcirculation.
c. drugsvmustvfirstvsurvivevthevacidicvenvironmentvofvthevstomach.
d. salivaryvenzymesvinvthevmouthvbeginvthevprocessvofvmetabolism.
Answer:vb
TextbookvReference:vPharmacokineticvFactorsvDeterminingvDrugvAction
10. Toxicvsubstancesvinvthevbloodvtriggervavvomitingvresponsevbyvactivatingvthe
a. blood–brainvbarrier.
b. choroidvplexus.
c. areavpostrema.
d. medianveminence.
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Answer:vc
TextbookvReference:vPharmacokineticvFactorsvDeterminingvDrugvAction
11. Drugsvadministeredv_ havevthevmostvrapidvonsetvofvaction.
a. subcutaneously
b. intramuscularly
c. orally
d. intravenously
Answer:vd
TextbookvReference:vPharmacokineticvFactorsvDeterminingvDrugvAction
12. Ionizationvofvavdrugvdependsvonvthe ofvthevsolutionvandvthe
ofvthevdrug.
a. pH;vpKa
b. pKa;vpH
c. concentration;vlipidvsolubility
d. pH;vconcentration
Answer:va
TextbookvReference:vPharmacokineticvFactorsvDeterminingvDrugvAction
13. Thevabsorptionvofvavdrugvdependsvonvallvofvthevfollowingvexcept
a. lipidvsolubility.
b. ionization.
c. bodyvtemperature.
d. thevconcentrationvofvthevdrug.
Answer:vc
TextbookvReference:vPharmacokineticvFactorsvDeterminingvDrugvAction
14. Drugsvthatvare shouldvbevavoidedvbyvwomenvofvchildbearingvage.
a. teratogenic
b. ablevtovcrossvthevplacentalvbarrier
c. psychoactive
d. highlyvlipid-soluble
Answer:va
TextbookvReference:vPharmacokineticvFactorsvDeterminingvDrugvAction
15. Agentsvthatvinducevdevelopmentalvabnormalitiesvinvavfetusvarevknownvas
a. psychoactivevdrugs.
b. illicitvdrugs.
c. teratogens.
d. placentalvdrugs.
Answer:vc
TextbookvReference:vPharmacokineticvFactorsvDeterminingvDrugvAction
16. Depotvbindingvisvsaidvtovoccurvwhenvdrugs
a. bindvtovtheirvtargetvsites.
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