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1.Chapter g01-01
Hematology gis gthe gstudy gof:
*a. gblood gcells.
b. serum gelectrolytes.
c. plasma ghormone glevels.
d. bacteria gin gthe gblood.
General gFeedback:
Hematology gis gthe gstudy gof gblood gcells—red gblood
gcells, gwhite gblood gcells, gand gplatelets. gPlasma gand gserum
gelectrolytes gand ghormone glevels gare gevaluated gin gvarious
gsubdivisions gof gclinical gchemistry, gand gbacteria gare gevaluated
gin gclinical gmicrobiology.
2. Chapter g01-02
The gmorphology gof gblood gcells gis gimportant gto gevaluate:
a. every gtime ga gcomplete gblood gcount g(CBC) gis
grequested gon ga gpatient.
b. when gan ginstrument-generated gflag gis gobtained.
*c. gwhen ga gprofiling ginstrument gresult gis gabnormal.
d. gwhen gthe gwhite gcount gis gelevated.
General gFeedback:
Every glaboratory gmust gdetermine—based gon gits
ginstrumentation, gneeds gof gthe gclinician gand gother gparameter
gflags gthat galert gthe gmedical glaboratory gscientist gto gthe
gnecessity gfor gfurther gevaluation—when git gis gnecessary gto
gevaluate gcell gmorphology. gMany ginstrument-generated gflags,
galthough guseful, gmay gnot grequire greview. gIf gan gautomated gCBC
gdoes gnot gsuggest gthe gneed, gno greason gexists gto gevaluate gthe
gblood gfilm, geven gif gthe gwhite gcount gis gelevated.
3. Chapter g01-03
Who gis gultimately gresponsible gfor gdetermining gthe gspecimen
gintegrity gbefore ganalysis?
*a. gMedical glaboratory gprofessional
b. Nursing gstaff
c. Phlebotomist
d. Specimen-processing gpersonnel
General gFeedback:
The gmedical glaboratory gscientist gis gresponsible gfor
gensuring gthe gintegrity gof ga gspecimen gbefore ganalysis. gOnly ghe
gor gshe gcan gjudge gwhether gthe gspecimen gis gacceptable gso gthat
gvalid gresults gcan gbe gobtained. gAcceptable gcriteria ginclude
gsuch gthings gas gtype gof gspecimen gfor gthe gtest gordered g(e.g.,
gblood, gserum, gurine); gappropriate gadditive gpresent g(if gneeded)
gand gamount gof gspecimen grelative gto gthe gadditive; gtime
ginterval gsince gobtained; gand gpresence gor gabsence gof ghemolysis,
glipemia, gand gother gsimilar gconditions. gNone gof gthe gother
gpersonnel gnamed ghave gthe geducation gand gunderstanding gto gfully
gmake gthat gjudgment.
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4. Chapter g01-04
gHematocrit gis galso
gcalled:
a. white gcell gcount.
b. bone gmarrow gexamination.
c. red gblood gcell g(RBC) gcount.
*d. gpacked gred gcell gvolume.
General gFeedback:
Historically gthe ghematocrit gwas gdetermined gby
gcentrifuging gan galiquot gof ganticoagulated gwhole gblood gunder
gspecified gconditions g(e.g., gcentrifugal gforce, gcapillary gtube
glength, gand gbore gdiameter) gand gthen gdetermining gthe gratio gof
gthe gspace goccupied gby gthe gpacked gred gcells gcompared gwith
gthat gof gthe gentire gblood gvolume gin gthe gcapillary gtube, goften
gexpressed gas ga gpercentage. gHence, git gis galso gcalled gthe
gpacked gred gcell gvolume.
5. Chapter g01-05
The gprimary gfunction gof gplatelets gis gto:
a. defend gthe gbody gagainst gbacterial ginvasion.
b. carry goxygen gto gtissues.
*c. gfacilitate gblood gclotting.
d. gregulate gacid-base gbalance.
General gFeedback:
Whenever gdisruption goccurs gto ga gblood gvessel gso gthat
gbleeding gresults, gplatelets grespond ginitially gto gstop gthe
gbleeding gin gsmall gvessels; gthey galso gplay gan gintegral grole
gin gfacilitating gthe gformation gof ga gblood gclot. gWhite gcells
gdefend gagainst gbacterial ginvasion; gred gcells g(i.e., ghemoglobin)
gcarry goxygen gto gtissues; gand ga gcomplex ginteraction gof gplasma
gelectrolytes, gproteins, gand gcarbon gdioxide gparticipates gin
gacid-base gbalance.
6. Chapter g01-06
Which gof gthe gfollowing gcan gbe gevaluated gonly gthrough gthe
gmicroscopic gexamination gof ga gstained gblood gfilm?
a. White gblood gcell g(WBC) gcount
b. Reticulocyte gcount
c. Hemoglobin gconcentration
*d. gPresence gor gabsence gof gcytoplasmic ginclusions
General gFeedback:
Making gand gstaining ga gblood gfilm gand gthen gplacing git
gunder ga gmicroscope gallow gthe gmedical glaboratory gscientist gto
gevaluate gthe gmorphology gof gblood gcells gand gexamine gthem gfor
gthe gpresence gor gabsence gof gblood gcell ginclusions. gThese
ginclusions gare gimportant gfor gcell gidentification gand, gwhen
gabnormal ginclusions gare gpresent, gsometimes gprovide g―clues‖ gas
gto gthe gcause gof gdisease. gAll gthe gother gparameters gmentioned
gare gor gcan gbe gperformed gusing gan gautomated ghematology
ginstrument, gincluding greticulocyte gcounting.
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7. Chapter g01-07
Upon gcentrifugation gof ga gblood gspecimen, gthe glayer gbetween gthe
gred gblood gcells gand gplasma gis gcalled gthe:
a. hematocrit.
*b. gbuffy gcoat.
c. serum.
d. platelet gpellet.
General gFeedback:
When gblood gis gcentrifuged, gthe glayer gbetween gthe gred
gcells gand gplasma gis gcalled gthe gbuffy gcoat. gThis glayer
gconsists gof gboth gwhite gblood gcells gand gplatelets. gThe
ghematocrit gis gthe gpacked gcell gvolume gthat greflects gthe gnumber
gof gred gblood gcells. gThe gserum gis gthe gliquid gportion gof gthe
gblood gformed gfrom ga gclotted gblood gsample. gThe gplatelet gpellet
gis ga gspecial glayer gof gplatelets gthat gis grequired gfor
gplatelet gfunction gstudies. gThis glayer gof gplatelets gis gprepared
gfrom ga gwhole gblood gspecimen gusing gspecific gcentrifugation gtime
gand gspeed.
8. Chapter g01-08
Select gthe gterm gthat gdescribes ga glow gwhite gblood gcell gcount.
*a. gLeukopenia
b. Leukocytosis
c. Neutropenia
d. Leukemia
General gFeedback:
The gterm gleukopenia grefers gto ga glow gtotal gwhite gblood
gcell gcount. gLeukocytosis gis ga gterm gthat gdescribes gan gincrease
gin gwhite gblood gcell gcount. gNeutropenia gis ga glow gcell gcount
gthat gis gspecific gto gthe gneutrophils. gLeukemia gis gcancer gof
gthe gblood gcells, gmost goften gwhite gblood gcells.
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1.Chapter g01-01
Hematology gis gthe gstudy gof:
*a. gblood gcells.
b. serum gelectrolytes.
c. plasma ghormone glevels.
d. bacteria gin gthe gblood.
General gFeedback:
Hematology gis gthe gstudy gof gblood gcells—red gblood
gcells, gwhite gblood gcells, gand gplatelets. gPlasma gand gserum
gelectrolytes gand ghormone glevels gare gevaluated gin gvarious
gsubdivisions gof gclinical gchemistry, gand gbacteria gare gevaluated
gin gclinical gmicrobiology.
2. Chapter g01-02
The gmorphology gof gblood gcells gis gimportant gto gevaluate:
a. every gtime ga gcomplete gblood gcount g(CBC) gis
grequested gon ga gpatient.
b. when gan ginstrument-generated gflag gis gobtained.
*c. gwhen ga gprofiling ginstrument gresult gis gabnormal.
d. gwhen gthe gwhite gcount gis gelevated.
General gFeedback:
Every glaboratory gmust gdetermine—based gon gits
ginstrumentation, gneeds gof gthe gclinician gand gother gparameter
gflags gthat galert gthe gmedical glaboratory gscientist gto gthe
gnecessity gfor gfurther gevaluation—when git gis gnecessary gto
gevaluate gcell gmorphology. gMany ginstrument-generated gflags,
galthough guseful, gmay gnot grequire greview. gIf gan gautomated gCBC
gdoes gnot gsuggest gthe gneed, gno greason gexists gto gevaluate gthe
gblood gfilm, geven gif gthe gwhite gcount gis gelevated.
3. Chapter g01-03
Who gis gultimately gresponsible gfor gdetermining gthe gspecimen
gintegrity gbefore ganalysis?
*a. gMedical glaboratory gprofessional
b. Nursing gstaff
c. Phlebotomist
d. Specimen-processing gpersonnel
General gFeedback:
The gmedical glaboratory gscientist gis gresponsible gfor
gensuring gthe gintegrity gof ga gspecimen gbefore ganalysis. gOnly ghe
gor gshe gcan gjudge gwhether gthe gspecimen gis gacceptable gso gthat
gvalid gresults gcan gbe gobtained. gAcceptable gcriteria ginclude
gsuch gthings gas gtype gof gspecimen gfor gthe gtest gordered g(e.g.,
gblood, gserum, gurine); gappropriate gadditive gpresent g(if gneeded)
gand gamount gof gspecimen grelative gto gthe gadditive; gtime
ginterval gsince gobtained; gand gpresence gor gabsence gof ghemolysis,
glipemia, gand gother gsimilar gconditions. gNone gof gthe gother
gpersonnel gnamed ghave gthe geducation gand gunderstanding gto gfully
gmake gthat gjudgment.
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4. Chapter g01-04
gHematocrit gis galso
gcalled:
a. white gcell gcount.
b. bone gmarrow gexamination.
c. red gblood gcell g(RBC) gcount.
*d. gpacked gred gcell gvolume.
General gFeedback:
Historically gthe ghematocrit gwas gdetermined gby
gcentrifuging gan galiquot gof ganticoagulated gwhole gblood gunder
gspecified gconditions g(e.g., gcentrifugal gforce, gcapillary gtube
glength, gand gbore gdiameter) gand gthen gdetermining gthe gratio gof
gthe gspace goccupied gby gthe gpacked gred gcells gcompared gwith
gthat gof gthe gentire gblood gvolume gin gthe gcapillary gtube, goften
gexpressed gas ga gpercentage. gHence, git gis galso gcalled gthe
gpacked gred gcell gvolume.
5. Chapter g01-05
The gprimary gfunction gof gplatelets gis gto:
a. defend gthe gbody gagainst gbacterial ginvasion.
b. carry goxygen gto gtissues.
*c. gfacilitate gblood gclotting.
d. gregulate gacid-base gbalance.
General gFeedback:
Whenever gdisruption goccurs gto ga gblood gvessel gso gthat
gbleeding gresults, gplatelets grespond ginitially gto gstop gthe
gbleeding gin gsmall gvessels; gthey galso gplay gan gintegral grole
gin gfacilitating gthe gformation gof ga gblood gclot. gWhite gcells
gdefend gagainst gbacterial ginvasion; gred gcells g(i.e., ghemoglobin)
gcarry goxygen gto gtissues; gand ga gcomplex ginteraction gof gplasma
gelectrolytes, gproteins, gand gcarbon gdioxide gparticipates gin
gacid-base gbalance.
6. Chapter g01-06
Which gof gthe gfollowing gcan gbe gevaluated gonly gthrough gthe
gmicroscopic gexamination gof ga gstained gblood gfilm?
a. White gblood gcell g(WBC) gcount
b. Reticulocyte gcount
c. Hemoglobin gconcentration
*d. gPresence gor gabsence gof gcytoplasmic ginclusions
General gFeedback:
Making gand gstaining ga gblood gfilm gand gthen gplacing git
gunder ga gmicroscope gallow gthe gmedical glaboratory gscientist gto
gevaluate gthe gmorphology gof gblood gcells gand gexamine gthem gfor
gthe gpresence gor gabsence gof gblood gcell ginclusions. gThese
ginclusions gare gimportant gfor gcell gidentification gand, gwhen
gabnormal ginclusions gare gpresent, gsometimes gprovide g―clues‖ gas
gto gthe gcause gof gdisease. gAll gthe gother gparameters gmentioned
gare gor gcan gbe gperformed gusing gan gautomated ghematology
ginstrument, gincluding greticulocyte gcounting.
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7. Chapter g01-07
Upon gcentrifugation gof ga gblood gspecimen, gthe glayer gbetween gthe
gred gblood gcells gand gplasma gis gcalled gthe:
a. hematocrit.
*b. gbuffy gcoat.
c. serum.
d. platelet gpellet.
General gFeedback:
When gblood gis gcentrifuged, gthe glayer gbetween gthe gred
gcells gand gplasma gis gcalled gthe gbuffy gcoat. gThis glayer
gconsists gof gboth gwhite gblood gcells gand gplatelets. gThe
ghematocrit gis gthe gpacked gcell gvolume gthat greflects gthe gnumber
gof gred gblood gcells. gThe gserum gis gthe gliquid gportion gof gthe
gblood gformed gfrom ga gclotted gblood gsample. gThe gplatelet gpellet
gis ga gspecial glayer gof gplatelets gthat gis grequired gfor
gplatelet gfunction gstudies. gThis glayer gof gplatelets gis gprepared
gfrom ga gwhole gblood gspecimen gusing gspecific gcentrifugation gtime
gand gspeed.
8. Chapter g01-08
Select gthe gterm gthat gdescribes ga glow gwhite gblood gcell gcount.
*a. gLeukopenia
b. Leukocytosis
c. Neutropenia
d. Leukemia
General gFeedback:
The gterm gleukopenia grefers gto ga glow gtotal gwhite gblood
gcell gcount. gLeukocytosis gis ga gterm gthat gdescribes gan gincrease
gin gwhite gblood gcell gcount. gNeutropenia gis ga glow gcell gcount
gthat gis gspecific gto gthe gneutrophils. gLeukemia gis gcancer gof
gthe gblood gcells, gmost goften gwhite gblood gcells.
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