ASCP BOC MLS EXAM STUDY SET WITH FULL PACK
SOLUTIONS
1.At ta tpH tof t8.6 tthe tgamma tglobulins tmove ttoward tthe tcathode, tdespite
tthe tfact tthat tthey tare tnegatively tcharged.: tEndosmosis- tthe tflow tof
twater/particle tinto ta tcell tto ta thigher tconcentration
2.is tmeasured tin tamniotic tfluid tto tpredict tneural ttube tdefects tin tthe tfetus:
tAl- tpha tfetal tprotein
3.In tamniotic tfluid, tthe tprocedure tused tto tdetect tRh tisosensitization,
tamount tof tbilirubin tand terythroblastosis tfetalis tis: t450 tnm tabsorbance
4.The tmajority tof tthyroxine t(T4) tis tconverted tinto tthe tmore tbiologically
tactive thormone: tt3 t(triiodothyronine)
5.Peptide tbond: tis tbasically tan tamide-type tof tcovalent tchemical tbond.
tThis tbond tlinks ttwo tconsecutive talpha-amino tacids tfrom tC1 t(carbon
tnumber tone) tof tone talpha-amino tacid tand tN2 t(nitrogen tnumber ttwo)
tof tanother.
6.A tpatient twith tmyeloproliferative tdisorder thas ta thigh tplatelet tand
tpotassium tcount, tthe tserum tpotassium tshould tbe tconfirmed tby: ttesting
1 t/
t22
,theparinized tplas- tma
7.Parathyroid tglands tregulate: tPhosphate
8.How tdo tyou ttest tfor tseminal tfluid/prostatic tfluid: tacid tphosphatase
9.Hemolysis tin tplasma: tincrease tK, tphosphate, tand tAST
10.What thappens twhen tyou tfail tto tseparate tred tcells tfrom tplasma tin
ttimely tfashion: ta tdecreased tglucose
11.Low tcalcium tin tblood tand thigh tK: tPossible tEDTA ttube tcontamination
12.Osmo tcontributor tin texternal tfluid: tSodium tNA, tchloride, tBicarb
13.Osmo tcontributor tin tinternal tfluid: tPotassium, tglucose,urea
14.Normal tRanges: tNa t135-145 tmmol/L
15.The tsteam tautoclave tmethod tof tsterilization trequires:: t15lbs tof
tpressure tfor t15 tminutes
16.rhabditiform tlarvae/"internal tautoinfection": tlength tof tthe tbuccal
tcavity tand tappearance tof tthe tgenital tprimordium
Example tStrongyloides tstercoralis
17.An tAFB tbroth tculture tis tpositive tfor tacid-fast tbacilli tat t1 tweek twhile tthe
tagar tslant tshows tno tgrowth. tThe tmost tlikely texplanation tfor tthis tis:: tAFB
tgrow tmore trapidly tin tliquid tmedia
18.Quality tcontrol tof tthe tspot tindole ttest trequires tthe tuse tof tATCC
tcultures tof:: tPos t( tE. tcoli, tP. tvulgaris, tP. trettgeri, tM. tmorgani tand
tProvidencia)
Neg t(Enterobactor, tSalmonella, tSerratia, tand tYersinia)
2 t/
t22
, 19. tWhich tone tof tthe tfollowing tfeatures tof tTaenia tsaginata
thelps tdistinguish tit tfrom tT. tsolium?: tunarmed trostellum t(dark
t"hair" tlike tstructure)
20.Which tcharacteristic twill tidentify tIodamoeba tbütschlii?: ent
tpromin tin tthe tcyst tform tvacuole
21.Culture tof ta tstrand tof thair, tthat tfluoresced tyellow-green twhen
texam- tined twith ta tWoods tlamp, tproduced ta tslow-growing, tflatony twith
tgray
tcol tacquet thy-
a tsalmon-pink treverse. tMicroscopic texamination tdemonstrated tzarre- r
tphae, tpectinate tbodies, tchlamydospores, tand ta tfew tabortive tor tshaped bi
tmacroconidia. tThe tmost tprobable tidentification tof tthis tisolate tis:: tMicrosporu
taudouinii
22.The tbest tway tto tdifferentiate tlisteria tfrom tcoryne tis:: tmotility tat
troom ttemp-apparently tit tlikes tit tbetter ton tthe tbench
23.The tmost tappropriate tmethod tfor tcollecting ta turine tspecimen tfrom ta
tpatient twith tan tindwelling tcatheter tis:: taspirate turine taseptically tfrom tthe
tcatheter ttubing
24.Which tof tthe tfollowing tinfectious tagents trelies ton tthe tdonor tanswer tto
tnot tcause ttransmission?: tPlasmodium tfalciparum
25.Which tblood ttype tis tmost tcommon tfor thispanics: to
26.Which trace tis tthe tmost tcommon tfor ttype tA: twhite
27.Which trace tis tthe tmost tcommon tfor ttype tB: tasian
28.Weak tD ttesting: tmust thave ta tnegative tcontrol; teither tRh tcontrol
ttube, tor tDAT ttest t(both tshould tbe tnegative)
29.How tlong tis twhole tblood tCPDA1 tgood tfor: t35 tdays
30.How tlong tare tleuko-reduced tRBC tgood tfor: t42 tdays
31.How tmuch tdoes ta tplatelet tbag tincrease tthe tplatelet tcount tin ta t70kg tadul
: t5,000 tper tunit
32.What tare tthe tcauses tof tfalse tpositive trh ttest: tpositive tDat t(too tmuch
tigg told ttype tof treagent), tfibrin/rouleaux, tcontamination, twrong
treagent, tover-centrifugation, tpolyagglutination, tor ttech terror
33. What tare tthe tcauses tof ta tfalse tnegative trh ttest: tBlocked tantigen
tsites t(positive tDat), treagent thas tweak, tvariant, tor tspecific tform tof
tantigen, tcell tsuspension ttoo theavy, tcentrifugation ttoo tshort, tover
tshaking tof ttubes, tregent tcontaminated tor tdeteriorated, tor ttech terror
3 t/
t22
SOLUTIONS
1.At ta tpH tof t8.6 tthe tgamma tglobulins tmove ttoward tthe tcathode, tdespite
tthe tfact tthat tthey tare tnegatively tcharged.: tEndosmosis- tthe tflow tof
twater/particle tinto ta tcell tto ta thigher tconcentration
2.is tmeasured tin tamniotic tfluid tto tpredict tneural ttube tdefects tin tthe tfetus:
tAl- tpha tfetal tprotein
3.In tamniotic tfluid, tthe tprocedure tused tto tdetect tRh tisosensitization,
tamount tof tbilirubin tand terythroblastosis tfetalis tis: t450 tnm tabsorbance
4.The tmajority tof tthyroxine t(T4) tis tconverted tinto tthe tmore tbiologically
tactive thormone: tt3 t(triiodothyronine)
5.Peptide tbond: tis tbasically tan tamide-type tof tcovalent tchemical tbond.
tThis tbond tlinks ttwo tconsecutive talpha-amino tacids tfrom tC1 t(carbon
tnumber tone) tof tone talpha-amino tacid tand tN2 t(nitrogen tnumber ttwo)
tof tanother.
6.A tpatient twith tmyeloproliferative tdisorder thas ta thigh tplatelet tand
tpotassium tcount, tthe tserum tpotassium tshould tbe tconfirmed tby: ttesting
1 t/
t22
,theparinized tplas- tma
7.Parathyroid tglands tregulate: tPhosphate
8.How tdo tyou ttest tfor tseminal tfluid/prostatic tfluid: tacid tphosphatase
9.Hemolysis tin tplasma: tincrease tK, tphosphate, tand tAST
10.What thappens twhen tyou tfail tto tseparate tred tcells tfrom tplasma tin
ttimely tfashion: ta tdecreased tglucose
11.Low tcalcium tin tblood tand thigh tK: tPossible tEDTA ttube tcontamination
12.Osmo tcontributor tin texternal tfluid: tSodium tNA, tchloride, tBicarb
13.Osmo tcontributor tin tinternal tfluid: tPotassium, tglucose,urea
14.Normal tRanges: tNa t135-145 tmmol/L
15.The tsteam tautoclave tmethod tof tsterilization trequires:: t15lbs tof
tpressure tfor t15 tminutes
16.rhabditiform tlarvae/"internal tautoinfection": tlength tof tthe tbuccal
tcavity tand tappearance tof tthe tgenital tprimordium
Example tStrongyloides tstercoralis
17.An tAFB tbroth tculture tis tpositive tfor tacid-fast tbacilli tat t1 tweek twhile tthe
tagar tslant tshows tno tgrowth. tThe tmost tlikely texplanation tfor tthis tis:: tAFB
tgrow tmore trapidly tin tliquid tmedia
18.Quality tcontrol tof tthe tspot tindole ttest trequires tthe tuse tof tATCC
tcultures tof:: tPos t( tE. tcoli, tP. tvulgaris, tP. trettgeri, tM. tmorgani tand
tProvidencia)
Neg t(Enterobactor, tSalmonella, tSerratia, tand tYersinia)
2 t/
t22
, 19. tWhich tone tof tthe tfollowing tfeatures tof tTaenia tsaginata
thelps tdistinguish tit tfrom tT. tsolium?: tunarmed trostellum t(dark
t"hair" tlike tstructure)
20.Which tcharacteristic twill tidentify tIodamoeba tbütschlii?: ent
tpromin tin tthe tcyst tform tvacuole
21.Culture tof ta tstrand tof thair, tthat tfluoresced tyellow-green twhen
texam- tined twith ta tWoods tlamp, tproduced ta tslow-growing, tflatony twith
tgray
tcol tacquet thy-
a tsalmon-pink treverse. tMicroscopic texamination tdemonstrated tzarre- r
tphae, tpectinate tbodies, tchlamydospores, tand ta tfew tabortive tor tshaped bi
tmacroconidia. tThe tmost tprobable tidentification tof tthis tisolate tis:: tMicrosporu
taudouinii
22.The tbest tway tto tdifferentiate tlisteria tfrom tcoryne tis:: tmotility tat
troom ttemp-apparently tit tlikes tit tbetter ton tthe tbench
23.The tmost tappropriate tmethod tfor tcollecting ta turine tspecimen tfrom ta
tpatient twith tan tindwelling tcatheter tis:: taspirate turine taseptically tfrom tthe
tcatheter ttubing
24.Which tof tthe tfollowing tinfectious tagents trelies ton tthe tdonor tanswer tto
tnot tcause ttransmission?: tPlasmodium tfalciparum
25.Which tblood ttype tis tmost tcommon tfor thispanics: to
26.Which trace tis tthe tmost tcommon tfor ttype tA: twhite
27.Which trace tis tthe tmost tcommon tfor ttype tB: tasian
28.Weak tD ttesting: tmust thave ta tnegative tcontrol; teither tRh tcontrol
ttube, tor tDAT ttest t(both tshould tbe tnegative)
29.How tlong tis twhole tblood tCPDA1 tgood tfor: t35 tdays
30.How tlong tare tleuko-reduced tRBC tgood tfor: t42 tdays
31.How tmuch tdoes ta tplatelet tbag tincrease tthe tplatelet tcount tin ta t70kg tadul
: t5,000 tper tunit
32.What tare tthe tcauses tof tfalse tpositive trh ttest: tpositive tDat t(too tmuch
tigg told ttype tof treagent), tfibrin/rouleaux, tcontamination, twrong
treagent, tover-centrifugation, tpolyagglutination, tor ttech terror
33. What tare tthe tcauses tof ta tfalse tnegative trh ttest: tBlocked tantigen
tsites t(positive tDat), treagent thas tweak, tvariant, tor tspecific tform tof
tantigen, tcell tsuspension ttoo theavy, tcentrifugation ttoo tshort, tover
tshaking tof ttubes, tregent tcontaminated tor tdeteriorated, tor ttech terror
3 t/
t22
