,Chapter 1: Introduction to Hematology and Basic Laboratory Practice
f f f f f f f f
MultiplefChoice
Identifyfthefchoicefthatfbestfcompletesfthefstatementforfanswersfthefquestion.
1. Tubeflengthfwhenfreferringftofthefmicroscopefisfthe:
a. Resolutionfpowerfoffthefobjective
b. Distanceffromfthefeyepieceftofthefobjective
c. Numericalfaperture
d. Magnitudefoffthefimagefonfthefstage
2. Whatfisfthefmostfusefulfcorrectivefactionfforfthefmicroscopefwhenffinefdetailsfcannotfbefvisualizedfinfi
mmaturefcells?
a.Openfupfdiaphragmfforfmaximumflight.
b.Wipefoffflensesfwithflensfcleaner.
c.Getfafnewfslide.
d.Moveftofaflowerfpower.
3. Whichfofftheffollowingfbehaviorsfisfafviolationfoffstandardfprecautions?
a. Handwashingfafterfglovefremoval
b. Usefoffimpermeableflaboratoryfgowns
c. Usefoffgogglesfandffacefshields
d. Placingflaboratoryfnotebooksfonflaboratoryfworkfarea
4. Standardsfandfcalibratorsfdifferffromfcontrolfmaterialsfbecause:
a. Anfexactfamountfoffanalytefisfpresentfinfafstandardforfcalibrator
b. Afvariablefamountfoffanalytefisfpresentfdependingfonfpatientfsamples
c. Standardsfonlyfneedftofbefwithinfaftargetfrange
d. Standardsfarefrunftofthefbestfestimatefoffthefknownfvalue
5. Iffthefconfidencefintervalfforfmostflaboratoriesfisf95.5%,fwhatfisfthefacceptablefrangefforfhemoglobinf
iffafhemoglobinfcontrolfwasfrunfwithfafmeanfoff12.5fandfafstandardfdeviationfoff1.0?
a. 9.5ftof12.5
b. 10.5ftof14.5
c. 11.5ftof15.5
d. 10.0ftof13.5
6. Properfmixingfoffsamplesfandftimelyfdeliveryfoffsamplesftoftheflaboratoryfarefbothfexamplesfof:
a. Deltafchecks
b. Postanalyticfvariables
c. Preanalyticfvariables
d. Reflexftesting
7. Afdeltafcheckfisfafhistoricalfreferencefonfsamplesfrunfinftheflaboratories.fOncefafsampleffailsfafdeltafchec
k,fthefmostfobviousfcorrectivefactionfisfto:
a. Verifyfthefidentificationfoffthefpatientfsample
b. Reestablishfthefparametersfoffthefdeltafcheck
c. Performfreflexftesting
, d. Performfafmanualfmethod
8.f f Whichfofftheffollowingfisfthefdefinitionfoffafreferencefinterval?
a. Afsolutionfoffafknownfamountfoffanalyte
b. Materialsfanalyzedfconcurrentlyfwithfunknownfsamples
c. Valuesfestablishedfforfafparticularfanalyte,fgivenfafmethod,finstrument,forfpatientfpo
pulation
d. Validationftechniquesfonfflaggedfsamples
9.f f Whichfofftheffollowingfisfnotfconsideredfafpostanalyticfvariable?
a. Deltafchecks
b. Properfanticoagulantfused
c. Specimenfcheckedfforfclots
d. Criticalfresultsfcalled
f 10.f f Errorfanalysis,fstandardfprotocols,fandfturnaroundftimefarefallfpartfoffthe:
a. Qualityfassurancefsystem
b. Qualityfcontrolfprogram
c. Referencefstandards
d. Deltafcheckfprotocol
f 11.f f Thefaveragefoffafgroupfoffdatafpointsfisfdefinedfasfthe:
a. Mean
b. Mode
c. Median
d. Modicum
f 12.f f Safetyftrainingfisfpartfoffnewfemployeeftrainingfinfhealthfcarefandfincludes:
a. Biologicalfhazards
b. Chemicalfhazards
c. Environmentalfhazards
d. Allfoffthefabove
f 13.f Controlfmaterialsfare:
a. Analyzedfconcurrentlyfwithfthefunknownfsamples
b. Substancesfwithfafknownfamountfoffanalyte
c. Usedftofcalibratefthefmethod
d. Allfoffthefabove
f 14.f f Deltafchecksfarefusedfinfthefhematologyflaboratoryfto:
a. Comparefpastfpatientfresultsftofthefcurrentfresult
b. Verifyfcontrolfaccuracy
c. Establishfaftargetfrange
d. Establishfreferencefrangesfforfafparticularfanalyte
f 15.f f Whenfhandwashingfafterfafpatientfcontact,fthefsoapfapplicationfprocessfshouldflastfatfleast:
a. 5fseconds
b. 15fseconds
c. 20fseconds
, d. 30fseconds
f 16.f f Whichfofftheffollowingfrepresentsfanfexamplefoffafsafetyfviolationfinftheflaboratory?
a. Applicationfoffcosmetics
b. Mouthfpipetting
c. Consumingfbottledfwater
d. Allfthefabove
True/False
Indicatefwhetherfthefstatementfisftrueforffalse.
f 17.f Standardfdeviationfisfafmeasurementfoffprecision.
f 18.f f Accuracyfisfafmeasurementfofftheftruefvaluefoffanfanalyte.
f 19.f f Afnormalfdistributionfcurvefwillfhavef99.7%foffthefmeasuredfvaluesffallfwithinf2fSDs.
ShortfAnswer
f f f f f f f f
MultiplefChoice
Identifyfthefchoicefthatfbestfcompletesfthefstatementforfanswersfthefquestion.
1. Tubeflengthfwhenfreferringftofthefmicroscopefisfthe:
a. Resolutionfpowerfoffthefobjective
b. Distanceffromfthefeyepieceftofthefobjective
c. Numericalfaperture
d. Magnitudefoffthefimagefonfthefstage
2. Whatfisfthefmostfusefulfcorrectivefactionfforfthefmicroscopefwhenffinefdetailsfcannotfbefvisualizedfinfi
mmaturefcells?
a.Openfupfdiaphragmfforfmaximumflight.
b.Wipefoffflensesfwithflensfcleaner.
c.Getfafnewfslide.
d.Moveftofaflowerfpower.
3. Whichfofftheffollowingfbehaviorsfisfafviolationfoffstandardfprecautions?
a. Handwashingfafterfglovefremoval
b. Usefoffimpermeableflaboratoryfgowns
c. Usefoffgogglesfandffacefshields
d. Placingflaboratoryfnotebooksfonflaboratoryfworkfarea
4. Standardsfandfcalibratorsfdifferffromfcontrolfmaterialsfbecause:
a. Anfexactfamountfoffanalytefisfpresentfinfafstandardforfcalibrator
b. Afvariablefamountfoffanalytefisfpresentfdependingfonfpatientfsamples
c. Standardsfonlyfneedftofbefwithinfaftargetfrange
d. Standardsfarefrunftofthefbestfestimatefoffthefknownfvalue
5. Iffthefconfidencefintervalfforfmostflaboratoriesfisf95.5%,fwhatfisfthefacceptablefrangefforfhemoglobinf
iffafhemoglobinfcontrolfwasfrunfwithfafmeanfoff12.5fandfafstandardfdeviationfoff1.0?
a. 9.5ftof12.5
b. 10.5ftof14.5
c. 11.5ftof15.5
d. 10.0ftof13.5
6. Properfmixingfoffsamplesfandftimelyfdeliveryfoffsamplesftoftheflaboratoryfarefbothfexamplesfof:
a. Deltafchecks
b. Postanalyticfvariables
c. Preanalyticfvariables
d. Reflexftesting
7. Afdeltafcheckfisfafhistoricalfreferencefonfsamplesfrunfinftheflaboratories.fOncefafsampleffailsfafdeltafchec
k,fthefmostfobviousfcorrectivefactionfisfto:
a. Verifyfthefidentificationfoffthefpatientfsample
b. Reestablishfthefparametersfoffthefdeltafcheck
c. Performfreflexftesting
, d. Performfafmanualfmethod
8.f f Whichfofftheffollowingfisfthefdefinitionfoffafreferencefinterval?
a. Afsolutionfoffafknownfamountfoffanalyte
b. Materialsfanalyzedfconcurrentlyfwithfunknownfsamples
c. Valuesfestablishedfforfafparticularfanalyte,fgivenfafmethod,finstrument,forfpatientfpo
pulation
d. Validationftechniquesfonfflaggedfsamples
9.f f Whichfofftheffollowingfisfnotfconsideredfafpostanalyticfvariable?
a. Deltafchecks
b. Properfanticoagulantfused
c. Specimenfcheckedfforfclots
d. Criticalfresultsfcalled
f 10.f f Errorfanalysis,fstandardfprotocols,fandfturnaroundftimefarefallfpartfoffthe:
a. Qualityfassurancefsystem
b. Qualityfcontrolfprogram
c. Referencefstandards
d. Deltafcheckfprotocol
f 11.f f Thefaveragefoffafgroupfoffdatafpointsfisfdefinedfasfthe:
a. Mean
b. Mode
c. Median
d. Modicum
f 12.f f Safetyftrainingfisfpartfoffnewfemployeeftrainingfinfhealthfcarefandfincludes:
a. Biologicalfhazards
b. Chemicalfhazards
c. Environmentalfhazards
d. Allfoffthefabove
f 13.f Controlfmaterialsfare:
a. Analyzedfconcurrentlyfwithfthefunknownfsamples
b. Substancesfwithfafknownfamountfoffanalyte
c. Usedftofcalibratefthefmethod
d. Allfoffthefabove
f 14.f f Deltafchecksfarefusedfinfthefhematologyflaboratoryfto:
a. Comparefpastfpatientfresultsftofthefcurrentfresult
b. Verifyfcontrolfaccuracy
c. Establishfaftargetfrange
d. Establishfreferencefrangesfforfafparticularfanalyte
f 15.f f Whenfhandwashingfafterfafpatientfcontact,fthefsoapfapplicationfprocessfshouldflastfatfleast:
a. 5fseconds
b. 15fseconds
c. 20fseconds
, d. 30fseconds
f 16.f f Whichfofftheffollowingfrepresentsfanfexamplefoffafsafetyfviolationfinftheflaboratory?
a. Applicationfoffcosmetics
b. Mouthfpipetting
c. Consumingfbottledfwater
d. Allfthefabove
True/False
Indicatefwhetherfthefstatementfisftrueforffalse.
f 17.f Standardfdeviationfisfafmeasurementfoffprecision.
f 18.f f Accuracyfisfafmeasurementfofftheftruefvaluefoffanfanalyte.
f 19.f f Afnormalfdistributionfcurvefwillfhavef99.7%foffthefmeasuredfvaluesffallfwithinf2fSDs.
ShortfAnswer
