,Chapterf61:f6Introductionf6tof6Hematologyf6andf6Basicf6Laboratoryf6Practice
Multiplef6Choice
Identifyf6thef6choicef6thatf6bestf6completesf6thef6statementf6orf6answersf6thef6question.
1. Tubef6lengthf6whenf6referringf6tof6thef6microscopef6isf6the:
a. Resolutionf6powerf6off6thef6objective
b. Distancef6fromf6thef6eyepiecef6tof6thef6objective
c. Numericalf6aperture
d. Magnitudef6off6thef6imagef6onf6thef6stage
2. Whatf6isf6thef6mostf6usefulf6correctivef6actionf6forf6thef6microscopef6whenf6finef6detailsf6cannotf6bef6vi
sualizedf6inf6immaturef6cells?
a. Openf6upf6diaphragmf6forf6maximumf6light.
b. Wipef6offf6lensesf6withf6lensf6cleaner.
c. Getf6af6newf6slide.
d. Movef6tof6af6lowerf6power.
3. Whichf6off6thef6followingf6behaviorsf6isf6af6violationf6off6standardf6precautions?
a. Handwashingf6afterf6glovef6removal
b. Usef6off6impermeablef6laboratoryf6gowns
c. Usef6off6gogglesf6andf6facef6shields
d. Placingf6laboratoryf6notebooksf6onf6laboratoryf6workf6area
4. Standardsf6andf6calibratorsf6differf6fromf6controlf6materialsf6because:
a. Anf6exactf6amountf6off6analytef6isf6presentf6inf6af6standardf6orf6calibrator
b. Af6variablef6amountf6off6analytef6isf6presentf6dependingf6onf6patientf6samples
c. Standardsf6onlyf6needf6tof6bef6withinf6af6targetf6range
d. Standardsf6aref6runf6tof6thef6bestf6estimatef6off6thef6knownf6value
5. Iff6thef6confidencef6intervalf6forf6mostf6laboratoriesf6isf695.5%,f6whatf6isf6thef6acceptablef6rangef6for
hemoglobinf6iff6af6hemoglobinf6controlf6wasf6runf6withf6af6meanf6off612.5f6andf6af6standardf6deviati
f6
onf6off61.0?
a. 9.5f6tof612.5
b. 10.5f6tof614.5
c. 11.5f6tof615.5
d. 10.0f6tof613.5
6. Properf6mixingf6off6samplesf6andf6timelyf6deliveryf6off6samplesf6tof6thef6laboratoryf6aref6bothf6examplesf
6 of:
a. Deltaf6checks
b. Postanalyticf6variables
c. Preanalyticf6variables
d. Reflexf6testing
7. Af6deltaf6checkf6isf6af6historicalf6referencef6onf6samplesf6runf6inf6thef6laboratories.f6Oncef6af6samplef6fai
lsf6af6deltaf6check,f6thef6mostf6obviousf6correctivef6actionf6isf6to:
a. Verifyf6thef6identificationf6off6thef6patientf6sample
b. Reestablishf6thef6parametersf6off6thef6deltaf6check
c. Performf6reflexf6testing
, d. Performf6af6manualf6method
8.f 6 f 6 Whichf6off6thef6followingf6isf6thef6definitionf6off6af6referencef6interval?
a. Af6solutionf6off6af6knownf6amountf6off6analyte
b. Materialsf6analyzedf6concurrentlyf6withf6unknownf6samples
c. Valuesf6establishedf6forf6af6particularf6analyte,f6givenf6af6method,f6instrument,f6orf6p
atientf6population
d. Validationf6techniquesf6onf6flaggedf6samples
9.f 6 f 6 Whichf6off6thef6followingf6isf6notf6consideredf6af6postanalyticf6variable?
a. Deltaf6checks
b. Properf6anticoagulantf6used
c. Specimenf6checkedf6forf6clots
d. Criticalf6resultsf6called
f 6 10.f 6 f 6 Errorf6analysis,f6standardf6protocols,f6andf6turnaroundf6timef6aref6allf6partf6off6the:
a. Qualityf6assurancef6system
b. Qualityf6controlf6program
c. Referencef6standards
d. Deltaf6checkf6protocol
f 6 11.f 6 f 6 Thef6averagef6off6af6groupf6off6dataf6pointsf6isf6definedf6asf6the:
a. Mean
b. Mode
c. Median
d. Modicum
f 6 12.f 6 f 6 Safetyf6trainingf6isf6partf6off6newf6employeef6trainingf6inf6healthf6caref6andf6includes:
a. Biologicalf6hazards
b. Chemicalf6hazards
c. Environmentalf6hazards
d. Allf6off6thef6above
f 6 13.f 6 Controlf6materialsf6are:
a. Analyzedf6concurrentlyf6withf6thef6unknownf6samples
b. Substancesf6withf6af6knownf6amountf6off6analyte
c. Usedf6tof6calibratef6thef6method
d. Allf6off6thef6above
f 6 14.f 6 f 6 Deltaf6checksf6aref6usedf6inf6thef6hematologyf6laboratoryf6to:
a. Comparef6pastf6patientf6resultsf6tof6thef6currentf6result
b. Verifyf6controlf6accuracy
c. Establishf6af6targetf6range
d. Establishf6referencef6rangesf6forf6af6particularf6analyte
f 6 15.f 6 f 6 Whenf6handwashingf6afterf6af6patientf6contact,f6thef6soapf6applicationf6processf6shouldf6lastf6atf6leas
t:
a. 5f6seconds
b. 15f6seconds
c. 20f6seconds
, d. 30f6seconds
f 6 16.f 6 f 6 Whichf6off6thef6followingf6representsf6anf6examplef6off6af6safetyf6violationf6inf6thef6laboratory?
a. Applicationf6off6cosmetics
b. Mouthf6pipetting
c. Consumingf6bottledf6water
d. Allf6thef6above
True/False
Indicatef6whetherf6thef6statementf6isf6truef6orf6false.
f 6 17.f 6 Standardf6deviationf6isf6af6measurementf6off6precision.
f 6 18.f 6 f 6 Accuracyf6isf6af6measurementf6off6thef6truef6valuef6off6anf6analyte.
f 6 19.f 6 f 6 Af6normalf6distributionf6curvef6willf6havef699.7%f6off6thef6measuredf6valuesf6fallf6withinf62f6SDs.
Shortf6Answer
Multiplef6Choice
Identifyf6thef6choicef6thatf6bestf6completesf6thef6statementf6orf6answersf6thef6question.
1. Tubef6lengthf6whenf6referringf6tof6thef6microscopef6isf6the:
a. Resolutionf6powerf6off6thef6objective
b. Distancef6fromf6thef6eyepiecef6tof6thef6objective
c. Numericalf6aperture
d. Magnitudef6off6thef6imagef6onf6thef6stage
2. Whatf6isf6thef6mostf6usefulf6correctivef6actionf6forf6thef6microscopef6whenf6finef6detailsf6cannotf6bef6vi
sualizedf6inf6immaturef6cells?
a. Openf6upf6diaphragmf6forf6maximumf6light.
b. Wipef6offf6lensesf6withf6lensf6cleaner.
c. Getf6af6newf6slide.
d. Movef6tof6af6lowerf6power.
3. Whichf6off6thef6followingf6behaviorsf6isf6af6violationf6off6standardf6precautions?
a. Handwashingf6afterf6glovef6removal
b. Usef6off6impermeablef6laboratoryf6gowns
c. Usef6off6gogglesf6andf6facef6shields
d. Placingf6laboratoryf6notebooksf6onf6laboratoryf6workf6area
4. Standardsf6andf6calibratorsf6differf6fromf6controlf6materialsf6because:
a. Anf6exactf6amountf6off6analytef6isf6presentf6inf6af6standardf6orf6calibrator
b. Af6variablef6amountf6off6analytef6isf6presentf6dependingf6onf6patientf6samples
c. Standardsf6onlyf6needf6tof6bef6withinf6af6targetf6range
d. Standardsf6aref6runf6tof6thef6bestf6estimatef6off6thef6knownf6value
5. Iff6thef6confidencef6intervalf6forf6mostf6laboratoriesf6isf695.5%,f6whatf6isf6thef6acceptablef6rangef6for
hemoglobinf6iff6af6hemoglobinf6controlf6wasf6runf6withf6af6meanf6off612.5f6andf6af6standardf6deviati
f6
onf6off61.0?
a. 9.5f6tof612.5
b. 10.5f6tof614.5
c. 11.5f6tof615.5
d. 10.0f6tof613.5
6. Properf6mixingf6off6samplesf6andf6timelyf6deliveryf6off6samplesf6tof6thef6laboratoryf6aref6bothf6examplesf
6 of:
a. Deltaf6checks
b. Postanalyticf6variables
c. Preanalyticf6variables
d. Reflexf6testing
7. Af6deltaf6checkf6isf6af6historicalf6referencef6onf6samplesf6runf6inf6thef6laboratories.f6Oncef6af6samplef6fai
lsf6af6deltaf6check,f6thef6mostf6obviousf6correctivef6actionf6isf6to:
a. Verifyf6thef6identificationf6off6thef6patientf6sample
b. Reestablishf6thef6parametersf6off6thef6deltaf6check
c. Performf6reflexf6testing
, d. Performf6af6manualf6method
8.f 6 f 6 Whichf6off6thef6followingf6isf6thef6definitionf6off6af6referencef6interval?
a. Af6solutionf6off6af6knownf6amountf6off6analyte
b. Materialsf6analyzedf6concurrentlyf6withf6unknownf6samples
c. Valuesf6establishedf6forf6af6particularf6analyte,f6givenf6af6method,f6instrument,f6orf6p
atientf6population
d. Validationf6techniquesf6onf6flaggedf6samples
9.f 6 f 6 Whichf6off6thef6followingf6isf6notf6consideredf6af6postanalyticf6variable?
a. Deltaf6checks
b. Properf6anticoagulantf6used
c. Specimenf6checkedf6forf6clots
d. Criticalf6resultsf6called
f 6 10.f 6 f 6 Errorf6analysis,f6standardf6protocols,f6andf6turnaroundf6timef6aref6allf6partf6off6the:
a. Qualityf6assurancef6system
b. Qualityf6controlf6program
c. Referencef6standards
d. Deltaf6checkf6protocol
f 6 11.f 6 f 6 Thef6averagef6off6af6groupf6off6dataf6pointsf6isf6definedf6asf6the:
a. Mean
b. Mode
c. Median
d. Modicum
f 6 12.f 6 f 6 Safetyf6trainingf6isf6partf6off6newf6employeef6trainingf6inf6healthf6caref6andf6includes:
a. Biologicalf6hazards
b. Chemicalf6hazards
c. Environmentalf6hazards
d. Allf6off6thef6above
f 6 13.f 6 Controlf6materialsf6are:
a. Analyzedf6concurrentlyf6withf6thef6unknownf6samples
b. Substancesf6withf6af6knownf6amountf6off6analyte
c. Usedf6tof6calibratef6thef6method
d. Allf6off6thef6above
f 6 14.f 6 f 6 Deltaf6checksf6aref6usedf6inf6thef6hematologyf6laboratoryf6to:
a. Comparef6pastf6patientf6resultsf6tof6thef6currentf6result
b. Verifyf6controlf6accuracy
c. Establishf6af6targetf6range
d. Establishf6referencef6rangesf6forf6af6particularf6analyte
f 6 15.f 6 f 6 Whenf6handwashingf6afterf6af6patientf6contact,f6thef6soapf6applicationf6processf6shouldf6lastf6atf6leas
t:
a. 5f6seconds
b. 15f6seconds
c. 20f6seconds
, d. 30f6seconds
f 6 16.f 6 f 6 Whichf6off6thef6followingf6representsf6anf6examplef6off6af6safetyf6violationf6inf6thef6laboratory?
a. Applicationf6off6cosmetics
b. Mouthf6pipetting
c. Consumingf6bottledf6water
d. Allf6thef6above
True/False
Indicatef6whetherf6thef6statementf6isf6truef6orf6false.
f 6 17.f 6 Standardf6deviationf6isf6af6measurementf6off6precision.
f 6 18.f 6 f 6 Accuracyf6isf6af6measurementf6off6thef6truef6valuef6off6anf6analyte.
f 6 19.f 6 f 6 Af6normalf6distributionf6curvef6willf6havef699.7%f6off6thef6measuredf6valuesf6fallf6withinf62f6SDs.
Shortf6Answer
