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Blood Bank Final Exam| questions and answers| multiple choice with correct answers given/verified 100% Blood Bank Final Exam| questions and answers| multiple choice with correct answers given/verified 100% Which of the following is the most common cause of a false negative antibody screen o...

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  • November 14, 2024
  • 40
  • 2024/2025
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  • Questions & answers

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Blood Bank Final Exam| questions and a
os os os os os os




nswers| multiple choice with correct ans
os os os os os




wers given/verified 100%
os os




WhichosofostheosfollowingosisostheosmostoscommonoscauseosofosaosfalseosnegativeosantibodyosscreenosorosIDostest?

a.osForgettingostoosaddosAHG

b.osUsingosAHGosthatosisosexpired

c.osInadequateoswashing

d.osAospositiveosautocontrolos-oscorrectosanswer-C

Whatosareoscheckoscellsos(akaosCoombsoscontroloscells)?

a.osDospositiveoscellsoscoatedoswithosanti-Dosantibodies

b.osDosnegativeoscellsoscoatedoswithosanti-Dosantibodies

c.osTypeosO,osDospositiveoscellsoscoatedoswithosAHG

d.osTypeosO,osDosnegativeoscellsoscoatedoswithosAHGos-oscorrectosanswer-A

Whichosofostheosfollowingosidentifiesosallostheostestingosthatosmustosbeosperformedosonosaostransfusionosrecipient
?

a.osABOosandosRhostyping,osweakosDosifosDosnegative,osIATosAntibodyosscreen,oscrossmatch

b.osABOosandosRhostyping,osIATosantibodyosscreen,oscrossmatch

c.osABOosandosRhostyping,osweakosDosifosDosnegative,ostransfusionostransmittedosdiseaseostesting

d.osABOosandosRhostyping,osISoscrossmatchosonlyos-oscorrectosanswer-B

Whatoscanositosmeanosifostheosautocontrolosinosanosantibodyostestosisospositive?

a.osThatostheyosmustoshaveosanosalloantibodyospresentosonostheirosownosredoscells

b.osThatostheyosmustoshaveosanosautoantibodyospresentosonostheirosownosredoscells

c.osThatostheyosmustosbeoshavingosaostransfusionosreactionosandoshaveosalloantibodiesosattachedostoosthe

donorosredoscells.

d.osThatostheyoseitheroshaveosanosautoantibodyospresentosorostheyoshaveosbeenosrecentlyostransfused

andoshaveosalloantibodiesosattachedostoostheosdonorosredoscellsos-oscorrectosanswer-D

,Whyosshouldossomeospaneloscellsosthatosareosheterozygousosforosanosantigenosnotosbeoscrossedosoutoswhenosthe

reactionoswithosthatoscellosisosnegative?

a.osTheosantibodyosmayosnotosreactoswithossuchosaoscell

b.osBecauseostheyoshaveosaosdoubleosdoseosofostheosantigen

c.osBecauseosyouosonlyoscrossosoutoswithospositiveoscells

d.osBecauseosyouosshouldn'toshaveosanyosheterozygousoscellsosinosyourospanelos-oscorrectosanswer-A

Whatosisostheos"ruleosofos3"?

a.osYouosmustoscheckosyourosworkos3ostimesosbeforeosreportingositosout

b.osThreeoscellsosthatosareospositiveosreact,osyouoshaveosaosnegativeosautocontrol,osandosyouoshaveosa

patternosmatch

c.osThreeoscellsosthatosareosnegativeosdon'tosreact,osyouoshaveosaosnegativeosautocontrol,osandosyouoshave

aospatternosmatch.

d.osPatientosplasmaosisospositiveoswithos3oscellsoswithostheosantigenosandosnegativeoswithos3oscells

withoutostheosantigenos-oscorrectosanswer-D

Whatosshouldosyouosdoosnextosifostheosruleosofosthreeosisosnotossatisfied?

a.osDoostheostestosoverosagain

b.osReportositosoutoswithosaosstatementosthatostheosruleosofos3oswasosnotosmet

c.osDon'tosworryosaboutosit.osTheosruleosofos3osisosjustosaossuggestion.

d.osCheckosyourosscreeningoscellsosforosanyoscellsosyouosneedostoosmeetostheosruleosofos3os-oscorrectosanswer-D

YouoshaveosaddedosreagentosantibodyosofostheossuspectedosinosvivoosantibodyostoostheospatientsosRBCS.osWhat

typeosofosreactionosdoosyouosexpectosandoswhy?

a.osNegativeosreactionosbecauseosyouosdon'tosmakeosanosantibodyostoosanosantigenosthatosyouoshave.

b.osPositiveosreactionosbecauseoswhatoshappens

inosvivooshappensosinosvitro

c.osNegativeosreactionosbecauseosyouosneedostoosaddosdonoroscellsostoosgetosaospositiveosreaction

d.osPositiveosreactionosbecauseostheosreagentosantibodyosisosanosIgMos-oscorrectosanswer-A

WhatosdoesosZZAPosreagentosdo?

a.osDenaturesostheosKxosantigen

b.osDenaturesostheosKosantigen

,c.osEnhancesostheosKxosantigen

d.osEnhancesostheosKosantigenos-oscorrectosanswer-B

Whichosofostheosfollowingosgroupsosofosantigensosareosdestroyedosbyosenzymes?

a.osRh,osKidd,osLewis

b.osIosandosP

c.osM,osN,osS,osDuffy

d.osJka,osJkbosandosJsa,osJsbos-oscorrectosanswer-C

Whatossubstanceoscouldosyouosuseostoosneutralizeosanosanti-I?

a.osBreastosmilk

b.osSolubleosantigenosinosplasmaosandossaliva

c.osHydatidoscystosfluid

d.osGuineaospigosurineos-oscorrectosanswer-A

Whatosdoossulfhydrylosreagentsosdo?

a.osDestroyosantigens

b.osCleaveosIgGosantibodyosoffosofoscells

c.osDestroyosantibody

d.osCleaveostheosdisulfideosbondsosofosIgMos-oscorrectosanswer-D

Whatostypeosofoscellsosshouldosbeosincludedosinosaosmini-coldospanelosifosaosgrouposOospersonosisossuspectedosof

havingosanosanti-I?

a.osOospaneloscells

b.osAdultoslittleosioscells

c.osA1osandosA2oscells

d.osCordoscellsos-oscorrectosanswer-D

WhichosofostheosfollowingostechniquesoscanosbeosmostosusefuloswhenosyouoshaveosaospositiveosDATos(direct

antiglobulinostest)osandosyouoswantostoosidentifyostheosantibody?

a.osNeutralization

b.osElution

c.osAbsorption

d.osScreenos-oscorrectosanswer-B

, YouoswouldosperformosaosDATosinosallostheosfollowingosscenariososexceptoswhichosone?

a.osPositiveosantibodyosscreen

b.osSuspectedosHDFN

c.osSuspectedostransfusionosreaction

d.osSuspectedosautoimmuneosdiseaseos-oscorrectosanswer-A

Whatoscausesosanosantibodyostoosdissociateosfromosaosredoscellosinostheosacidosglycineoselutionosmethod?

a.osTheosacidosdissolvesosbilipidoslayerosofostheosRBCosmembrane

b.osTheosacidoslysesostheosredoscells

c.osTheosacidoscausesosaosconformationaloschange

d.osTheosacidoslowersostheospHos-oscorrectosanswer-D

Youoshaveosaospatientoswhoosdeliveredosheros5thoschildoslastosmonthosinoswhichosthereoswasosaoslargeosvolumeosof

fetalosmaternaloshemorrhage.osSheosisospreparingosforossurgeryosandoshasosaospositiveosscreen.osAnosanti-e

hadosbeenosidentifiedosbeforeostheosdeliveryosofosheros5thoschild.osButosyouoswantostoosmakeoscertainossheosdoes

notoshaveosanyosotherosantibodies.osBecauseosmostosofosyourospaneloscellsoshaveostheoseosantigenoswhatosmight

youosdoostoostheosplasmaosbeforeostestingositoswithosyourosantibodyospanel.

a.osAnosalloabsorption

b.osAnosautoadsorption

c.osAnoselution

d.osTreatosheroscellsoswithoschoroquineosdiphosphateos-oscorrectosanswer-A

Whichosofostheosserologicalosmethodsosdoesosnotosrequireosaoswashosstep?

a.osTube

b.osGel

c.osSolidosphase

d.osNoneosofostheosaboveos-oscorrectosanswer-B

Whichosofostheosfollowingosdonorsoswouldosbeosacceptableosforosaosdoubleosredosapheresisosdonation?

a.os60-year-
oldosmanoswhoossmokesosaospackosaosday,oshemoglobinos13.5osg/dL,osheightos5'2"osandosweightos130oslbs,oswhoosd
onatedosaosdoubleosredos115osdaysosago

b.os25-year-oldosfemaleosweight-lifter,oshemoglobinos13.0,osheightos5'11"osandosweightos150oslbs.oswho

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