ASCP BOARD OF CERTIFICATION
MLT EXAM REVIEW NEWEST
2026/2027 ACTUAL EXAM TEST
BANK| MEDICAL LABORATORY
TECHNICIAN EXAM PREP WITH
COMPLETE 190 REAL EXAM
QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED
ANSWERS) ALREADY GRADED A+
(MOST RECENT!!)
Nephelometrymismbasedmonmthemprinciplemof:m-
mCORRECTmANSWERmTurbiditymresultingmfrommspecificmantigen-
coatedmlatexmparticlesmagglutinatedmbymcorrespondingmantibody
Whichmofmthemfollowingmcanmcausemhemolysismandmperhapsmresultminmrecollectionmofmthemspecim
en?m-
mCORRECTmANSWERmPushingmthemplungermofmamsyringemwhenmtransferringmbloodmintomvacuummt
ubes.
Ammanualmwhitembloodmcellmcountmwasmperformedmbymthemhematologymtechnologist.mThemcellmco
untsmformbothmsidesmwerem99mandm164,mrespectively.mAllmninemlargemsquaresmweremcountedmonmea
chmside.mThemdilutionmformthismkitmwasmpre-
measuredmatm1:100.mWhatmshouldmthemtechnologistmreportmasmthemwhitemcellmcount?m-
mCORRECTmANSWERmCannotmreport
Whenmcomparingmthemwhitemcellmcountsmfrommonemsidemofmthemhemacytometermtomthemother,mth
eremismnotmgoodmduplication.mCellmcountsmfrommoppositemsidesmofmthemhemacytometerm(withinmth
emsamempatientmsample)mthatmaremgreatermthanm10%mofmonemanothermaremconsideredmdiscrepantm
,andmshouldmnotmbemusedmtomcalculatemreportablemresults.mThismparticularmcountmshouldmnotmbemu
sedmtomreportmpatientmresults.
ThemRBCminclusionsmshownminmthemphotographmrepresentmwhichmofmthemfollowing?m-
mCORRECTmANSWERmHowell-Jollymbodies
Howell-
Jollymbodiesmaremusuallymsingle,mround,mandmtendmtombempositionedmatmthemperipherymofmthemredm
bloodmcell.mTheseminclusionsmaremrarelymfoundmonmamroutinemperipheralmbloodmsmear,masmtheymar
emusuallymremovedmbymamfunctioningmspleen.mHowell-
Jollymbodiesmappearminmmegaloblasticmanemiasmandmaftermsplenectomy.
Whichmofmthemfollowingmtestsmwouldmbememployedminmordermtomdetectmneuralmtubemdefects?m-
mCORRECTmANSWERmAlphamfetoprotein
Alpha-
fetoproteinmismamproteinmmeasuredminmpregnantmwomen,musingmmaternalmbloodmormamnioticmflui
d,masmamscreeningmtestmformamsubsetmdevelopmentalmabnormalities:mitmismprincipallymincreasedminm
openmneuralmtubemdefectsmandmdecreasedminmDownmsyndrome.
Ampatientmhasmthemfollowingmserummresults:
Nam=m130mmEq/LKm=m4.9mmEq/LClm=m107mmEq/LGlucosem=m300mmg/dLBUNm=m18mmg/dLCreatinine
m=m1.1mmg/dL
Whichmosmolalitymresultmismconsistentmwithmthesemresults?.m-
mCORRECTmANSWERm281mmosmol/kg
Osmolalitym=m2mxmNam+m[Glucosem(mg/dL)m/m20]m+m[BUNm(mg/dL)/m3]
, Amliquidmion-
exchangemmembranemelectrodemusingmthemantibioticmvalinomycinmismMOSTmselectivemfor:m-
mCORRECTmANSWERmPotassium
Themvalinomycinmmembranemelectrodemismmostmselectivemformpotassiummasmopposedmtomsodium,
mglucose,mormchloridemwhichmutilizemdifferentmmembranesmformtheirmrespectivemelectrodes.mValino
mycin,mwhichmismneutralminmcharge,mhasmbeenmincorporatedmintomorganicmliquidmmembranesmresul
tingminmamsensormwithmamverymhighmselectivitymformpotassium.
Whatmshouldmsafetymmanagementmstartmwithminmordermtomensuremclaritymandmconsistency?m-
mCORRECTmANSWERmAmwrittenmsafetympolicy
Whichmofmthemfollowingmstatementsmaboutmhigh-frequencymantigensmismcorrect?m-
mCORRECTmANSWERmHigh-
frequencymantigensmaremcommon,mbutmitmismdifficultmtomidentifymtheirmcorrespondingmantibodies.
Anmadult'smplasmamcortisolmofm22mµg/dLmatm8:00ma.m.mandm10mµg/dLmatm4:00mp.m.mwouldmbe:m-
mCORRECTmANSWERmFoundminmamhealthymindividual
Normalmlevels:m5-23mµg/dLmatm8:00ma.m.
3-16mµg/dLmatm4:00mp.m.
<50%mofm8:00ma.m.mvaluesmatm8:00mp.m.
Amperipheralmsmearmdemonstratesmampopulationmofmredmcellsmthatmaremmostlym5m-
m5.5mµmminmdiameter.mThemCBCmdatamshowsmRDWmofm13%m(referencemrangem11.5-
14.5%).mWhichmofmthemfollowingmmorphologiesmismconsistentmwithmthesemfindings?m-
mCORRECTmANSWERmMicrocytosis,mlowmvariationmofmcellmvolume
SelectmthemprimarymreagentmcomponentsmusedminmthemJaffemreactionmformcreatinine.m-
mCORRECTmANSWERmSaturatedmpicricmacidmandmsodiummhydroxide
MLT EXAM REVIEW NEWEST
2026/2027 ACTUAL EXAM TEST
BANK| MEDICAL LABORATORY
TECHNICIAN EXAM PREP WITH
COMPLETE 190 REAL EXAM
QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED
ANSWERS) ALREADY GRADED A+
(MOST RECENT!!)
Nephelometrymismbasedmonmthemprinciplemof:m-
mCORRECTmANSWERmTurbiditymresultingmfrommspecificmantigen-
coatedmlatexmparticlesmagglutinatedmbymcorrespondingmantibody
Whichmofmthemfollowingmcanmcausemhemolysismandmperhapsmresultminmrecollectionmofmthemspecim
en?m-
mCORRECTmANSWERmPushingmthemplungermofmamsyringemwhenmtransferringmbloodmintomvacuummt
ubes.
Ammanualmwhitembloodmcellmcountmwasmperformedmbymthemhematologymtechnologist.mThemcellmco
untsmformbothmsidesmwerem99mandm164,mrespectively.mAllmninemlargemsquaresmweremcountedmonmea
chmside.mThemdilutionmformthismkitmwasmpre-
measuredmatm1:100.mWhatmshouldmthemtechnologistmreportmasmthemwhitemcellmcount?m-
mCORRECTmANSWERmCannotmreport
Whenmcomparingmthemwhitemcellmcountsmfrommonemsidemofmthemhemacytometermtomthemother,mth
eremismnotmgoodmduplication.mCellmcountsmfrommoppositemsidesmofmthemhemacytometerm(withinmth
emsamempatientmsample)mthatmaremgreatermthanm10%mofmonemanothermaremconsideredmdiscrepantm
,andmshouldmnotmbemusedmtomcalculatemreportablemresults.mThismparticularmcountmshouldmnotmbemu
sedmtomreportmpatientmresults.
ThemRBCminclusionsmshownminmthemphotographmrepresentmwhichmofmthemfollowing?m-
mCORRECTmANSWERmHowell-Jollymbodies
Howell-
Jollymbodiesmaremusuallymsingle,mround,mandmtendmtombempositionedmatmthemperipherymofmthemredm
bloodmcell.mTheseminclusionsmaremrarelymfoundmonmamroutinemperipheralmbloodmsmear,masmtheymar
emusuallymremovedmbymamfunctioningmspleen.mHowell-
Jollymbodiesmappearminmmegaloblasticmanemiasmandmaftermsplenectomy.
Whichmofmthemfollowingmtestsmwouldmbememployedminmordermtomdetectmneuralmtubemdefects?m-
mCORRECTmANSWERmAlphamfetoprotein
Alpha-
fetoproteinmismamproteinmmeasuredminmpregnantmwomen,musingmmaternalmbloodmormamnioticmflui
d,masmamscreeningmtestmformamsubsetmdevelopmentalmabnormalities:mitmismprincipallymincreasedminm
openmneuralmtubemdefectsmandmdecreasedminmDownmsyndrome.
Ampatientmhasmthemfollowingmserummresults:
Nam=m130mmEq/LKm=m4.9mmEq/LClm=m107mmEq/LGlucosem=m300mmg/dLBUNm=m18mmg/dLCreatinine
m=m1.1mmg/dL
Whichmosmolalitymresultmismconsistentmwithmthesemresults?.m-
mCORRECTmANSWERm281mmosmol/kg
Osmolalitym=m2mxmNam+m[Glucosem(mg/dL)m/m20]m+m[BUNm(mg/dL)/m3]
, Amliquidmion-
exchangemmembranemelectrodemusingmthemantibioticmvalinomycinmismMOSTmselectivemfor:m-
mCORRECTmANSWERmPotassium
Themvalinomycinmmembranemelectrodemismmostmselectivemformpotassiummasmopposedmtomsodium,
mglucose,mormchloridemwhichmutilizemdifferentmmembranesmformtheirmrespectivemelectrodes.mValino
mycin,mwhichmismneutralminmcharge,mhasmbeenmincorporatedmintomorganicmliquidmmembranesmresul
tingminmamsensormwithmamverymhighmselectivitymformpotassium.
Whatmshouldmsafetymmanagementmstartmwithminmordermtomensuremclaritymandmconsistency?m-
mCORRECTmANSWERmAmwrittenmsafetympolicy
Whichmofmthemfollowingmstatementsmaboutmhigh-frequencymantigensmismcorrect?m-
mCORRECTmANSWERmHigh-
frequencymantigensmaremcommon,mbutmitmismdifficultmtomidentifymtheirmcorrespondingmantibodies.
Anmadult'smplasmamcortisolmofm22mµg/dLmatm8:00ma.m.mandm10mµg/dLmatm4:00mp.m.mwouldmbe:m-
mCORRECTmANSWERmFoundminmamhealthymindividual
Normalmlevels:m5-23mµg/dLmatm8:00ma.m.
3-16mµg/dLmatm4:00mp.m.
<50%mofm8:00ma.m.mvaluesmatm8:00mp.m.
Amperipheralmsmearmdemonstratesmampopulationmofmredmcellsmthatmaremmostlym5m-
m5.5mµmminmdiameter.mThemCBCmdatamshowsmRDWmofm13%m(referencemrangem11.5-
14.5%).mWhichmofmthemfollowingmmorphologiesmismconsistentmwithmthesemfindings?m-
mCORRECTmANSWERmMicrocytosis,mlowmvariationmofmcellmvolume
SelectmthemprimarymreagentmcomponentsmusedminmthemJaffemreactionmformcreatinine.m-
mCORRECTmANSWERmSaturatedmpicricmacidmandmsodiummhydroxide
