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MLT ASCP PRACTICE TEST QUESTIONS BOARD PRACTICE
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MLT ASCP PRACTICE TEST QUESTIONS BOARD PRACTICE
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MLT ASCP PRACTICE TEST QUESTIONSBOARD PRACTICE
B;
The0correct0answer0for0this0question0is013000mg/
dL.0The0laboratorian0performed0a01:40dilution0by0adding00.250mL0(or02500microliters)0of0p
atient0sample0to07500microliters0of0diluent.0This0creates0a0total0volume0of010000microliter
s.0So,0the0patient0sample0is02500microliters0of0the010000microliter0mixed0sample,0or0a0rati
o0of01:4.0Therefore,0the0result0given0by0the0chemistry0analyzer0must0be0multiplied0by0a0di
lution0factor0of04.03250mg/dL0x040=013000mg/dL.0-
0After0experiencing0extreme0fatigue0and0polyuria,0a0patient's0basic0metabolic0panel0is0an
alyzed0in0the0laboratory.0The0result0of0the0glucose0is0too0high0for0the0instrument0to0read.0
The0laboratorian0performs0a0dilution0using00.250mL0of0patient0sample0to07500microliters0
of0diluent.0The0result0now0reads03250mg/
dL.0How0should0the0techologist0report0this0patient's0glucose0result?
A.03250mg/dL
B.013000mg/dL
C.09750mg/dL
D.016250mg/dL
A;
Conversion0of0only0the0slant0to0a0pink0color0in0a0Christensen's0urea0agar0slant0is0produce
d0by0bacterial0species0that0have0weak0urease0activity.0The0reaction0in0the0slant0to0the0rig
ht0is0often0produced0by0Klebsiella0species,0as0an0example.0Strong0urease0activity0is0indic
ated0by0conversion0of0the0slant0and0the0butt0of0the0tube0to0a0pink0color,0as0seen0in0the0tu
be0to0the0left.0The0slant0only0reaction0in0the0right0tube0may0be0seen0early0on0if0only0the0sl
ant0had0been0inoculated;0however,0with0a0strong0urease0producer,0both0the0slant0and0th
e0butt0would0turn.0Therefore,0the0reaction0is0dependent0on0the0strength0of0urease0activity
.0If0the0media0had0outdated0for0a0prolonged0period,0either0there0would0be0no0reaction0or0t
he0appearance0of0only0a0faint0pink0tinge,0either0in0the0slant,0the0butt0or0both,0again0depe
nding0on0the0strength0of0urease0production0by0the0unknown0organism.0-
0The0urease0reaction0seen0in0the0Christensen's0urea0agar0slant0on0the0far0right0indicates:
A.0Weak0activity
B.0Strong0activity
C.0Slant0only0inoculated
D.0Use0of0outdated0medium
,D;
The0steps0in0the0PCR0process0are:
1.0Denaturation0(Turning0double0stranded0DNA0into0single0strands.)
2.0Annealing/Hybrization0(Attachment0of0primers0to0the0single0DNA0strands.)
3.0Extension0(Creating0the0complementary0strand0to0produce0new0double0stranded0DNA.
)0-0What0is0the0first0step0of0the0PCR0reaction?
A.0Hybridization
B.0Extension
C.0Annealing
D.0Denaturation
B;
Isotonic0or0normal0saline0is0a00.850%0solution0of0sodium0chloride0in0water.0-
0The0concentration0of0sodium0chloride0in0an0isotonic0solution0is0:
A.08.50%
B.00.850%
C.00.080%
D.010molar
C;
In0DIC,0or0disseminated0intravascular0coagulation,0the0prothrombin0time0is0increased0du
e0to0the0consumption0of0the0coagulation0factors0due0to0the0tiny0clots0forming0throughout0t
he0vasculature.0This0is0also0the0reason0that0the0fibrinogen0levels0and0platelet0levels0are0
decreased.0Finally0FDP,0or0fibrin0degredation0products,0are0increased0due0to0the0formati
on0and0subsequent0dissolving0of0many0tiny0clots0in0the0vasculature.0The0FDPs0are0the0pi
eces0of0fibrin0that0are0left0after0the0fibrinolytic0processes0take0place.0-
0Which0of0the0following0laboratory0results0would0be0seen0in0a0patient0with0acute0Dissemi
nated0Intravascular0Coagulation0(DIC)?
A.0prolonged0PT,0elevated0platelet0count,0decreased0FDP
B.0normal0PT,0decreased0fibrinogen,0decreased0platelet0count,0decreased0FDP
C.0prolonged0PT,0decreased0fibrinogen,0decreased0platelet0count,0increased0FDP
D.0normal0PT,0decreased0platelet0count,0decreased0FDP
B;
A0dilution0commonly0used0for0a0routine0sperm0count0is0a01:20.0-
0A0dilution0commonly0used0for0a0routine0sperm0count0is:
A.01:2
B.01:20
C.01:200
D.01:400
, B;
Prozone0effect0(due0to0antibody0excess)0will0result0in0an0initial0false0negative0in0spite0of0t
he0large0amount0of0antibody0in0the0serum,0followed0by0a0positive0result0as0the0specimen0
is0diluted.0-
0The0prozone0effect0(0when0performing0a0screening0titer)0is0most0likely0to0result0in:
A.0False0positive
B.0False0negative
C.0No0reaction0at0all
D.0Mixed0field0reaction
A;
One0of0the0key0characteristics0to0the0identification0of0Nocardia0asteroides0is0its0inability0t
o0hydrolyze0casein,0tyrosine0or0xanthine,0as0shown0in0this0photograph.0Nitrates0are0redu
ced0to0nitrites.0Both0Nocardia0brasiliensis0and0Actinomadura0madurae0hydrolyze0both0ca
sein0and0tyrosine;0Streptomyces0griseus0hydrolyzes0all0three0of0the0substrates.0-
0Illustrated0in0this0photograph0is0an0agar0quadrant0plate0containing0casein0(A),0tyrosine0(
B),0nitrate0(C)0and0xanthine0(D).0None0of0the0substrates0have0been0hydrolyzed0and0nitrat
e0has0been0reduced.0The0most0likely0identification0is:
A.0Nocardia0asteroides
B.0Nocardia0brasiliensis
C.0Streptomyces0griseus
D.0Actinomadura0madurae
A;
Since0hemoglobin0is0measured0spectrophotometrically0on0hematology0analzyers,0interfe
rence0from0lipemia0or0icteric0specimens0can0lead0to0decreased0light0detected0and0measu
red0through0the0sample0and0therefore0inaccurate0hemoglobin0results0occur.0-
0On0an0electronic0cell0counter,0hemoglobin0determination0may0be0falsely0elevated0cause
d0by0the0presence0of:
A.0Lipemic0or0icteric0plasma
B.0Leukocytopenia0or0Leukocytosis
C.0Rouleaux0or0agglutinated0RBCs
D.0Anemia0or0Polycythemia
False
A0patient0who0has0a0primarily0vegetarian0diet0will0most0likely0have0an0alkaline0urine0pH.0
A0low-
carbohydrate0diet0as0well0as0the0ingestion0of0citrus0fruits0can0also0lead0to0a0more0alkaline
0urine0sample.0-
0A0patient0who0has0a0primarily0vegetarian0diet0will0most0likely0have0an0acid0urine0pH.
A;
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