ASCP BOARD OF CERTIFICATION MLT EXAM
REVIEW QUESTIONS AND CORRECT DETAILED
ANSWERS WITH RATIONALES (VERIFIED
ANSWERS)
Save
Terms in this set (187)
Turbidity resulting from specific antigen-coated
Nephelometry is based
latex particles agglutinated by corresponding
on the principle of:
antibody
Which of the following Pushing the plunger of a syringe when transferring
can cause hemolysis and blood into vacuum tubes.
perhaps result in
recollection of the
specimen?
A manual white blood Cannot report
cell count was
performed by the When comparing the white cell counts from one
hematology technologist. side of the hemacytometer to the other, there is not
The cell counts for both good duplication. Cell counts from opposite sides
sides were 99 and 164, of the hemacytometer (within the same patient
respectively. All nine sample) that are greater than 10% of one another are
large squares were considered discrepant and should not be used to
counted on each side. calculate reportable results. This particular count
The dilution for this kit should not be used to report patient results.
was pre-measured at
1:100. What should the
technologist report as
the white cell count?
, Howell-Jolly bodies
Howell-Jolly bodies are usually
single, round, and tend to be
positioned at the periphery of
The RBC inclusions the red blood cell. These
shown in the photograph inclusions are rarely found on a
represent which of the routine peripheral blood
following? smear, as they are usually
removed by a functioning
spleen. Howell-Jolly bodies
appear in megaloblastic
anemias and after
splenectomy.
Alpha fetoprotein
Which of the following Alpha-fetoprotein is a protein measured in pregnant
tests would be employed women, using maternal blood or amniotic fluid, as a
in order to detect neural screening test for a subset developmental
tube defects? abnormalities: it is principally increased in open
neural tube defects and decreased in Down
syndrome.
A patient has the 281 mosmol/kg
following serum results:
Na = 130 mEq/LK = 4.9 Osmolality = 2 x Na + [Glucose (mg/dL) / 20] + [BUN
mEq/LCl = 107 (mg/dL)/ 3]
mEq/LGlucose = 300
mg/dLBUN = 18
mg/dLCreatinine = 1.1
mg/dL
Which osmolality result is
consistent with these
results?.
, Potassium
The valinomycin membrane electrode is most
A liquid ion-exchange
selective for potassium as opposed to sodium,
membrane electrode
glucose, or chloride which utilize different
using the antibiotic
membranes for their respective electrodes.
valinomycin is MOST
Valinomycin, which is neutral in charge, has been
selective for:
incorporated into organic liquid membranes
resulting in a sensor with a very high selectivity for
potassium.
What should safety A written safety policy
management start with in
order to ensure clarity
and consistency?
Which of the following High-frequency antigens are common, but it is
statements about high- difficult to identify their corresponding antibodies.
frequency antigens is
correct?
Found in a healthy individual
An adult's plasma cortisol
of 22 µg/dL at 8:00 a.m.
Normal levels: 5-23 µg/dL at 8:00 a.m.
and 10 µg/dL at 4:00 p.m.
3-16 µg/dL at 4:00 p.m.
would be:
<50% of 8:00 a.m. values at 8:00 p.m.
A peripheral smear Microcytosis, low variation of cell volume
demonstrates a
population of red cells
that are mostly 5 - 5.5 µm
in diameter. The CBC data
shows RDW of 13%
(reference range 11.5-
14.5%). Which of the
following morphologies
is consistent with these
findings?
REVIEW QUESTIONS AND CORRECT DETAILED
ANSWERS WITH RATIONALES (VERIFIED
ANSWERS)
Save
Terms in this set (187)
Turbidity resulting from specific antigen-coated
Nephelometry is based
latex particles agglutinated by corresponding
on the principle of:
antibody
Which of the following Pushing the plunger of a syringe when transferring
can cause hemolysis and blood into vacuum tubes.
perhaps result in
recollection of the
specimen?
A manual white blood Cannot report
cell count was
performed by the When comparing the white cell counts from one
hematology technologist. side of the hemacytometer to the other, there is not
The cell counts for both good duplication. Cell counts from opposite sides
sides were 99 and 164, of the hemacytometer (within the same patient
respectively. All nine sample) that are greater than 10% of one another are
large squares were considered discrepant and should not be used to
counted on each side. calculate reportable results. This particular count
The dilution for this kit should not be used to report patient results.
was pre-measured at
1:100. What should the
technologist report as
the white cell count?
, Howell-Jolly bodies
Howell-Jolly bodies are usually
single, round, and tend to be
positioned at the periphery of
The RBC inclusions the red blood cell. These
shown in the photograph inclusions are rarely found on a
represent which of the routine peripheral blood
following? smear, as they are usually
removed by a functioning
spleen. Howell-Jolly bodies
appear in megaloblastic
anemias and after
splenectomy.
Alpha fetoprotein
Which of the following Alpha-fetoprotein is a protein measured in pregnant
tests would be employed women, using maternal blood or amniotic fluid, as a
in order to detect neural screening test for a subset developmental
tube defects? abnormalities: it is principally increased in open
neural tube defects and decreased in Down
syndrome.
A patient has the 281 mosmol/kg
following serum results:
Na = 130 mEq/LK = 4.9 Osmolality = 2 x Na + [Glucose (mg/dL) / 20] + [BUN
mEq/LCl = 107 (mg/dL)/ 3]
mEq/LGlucose = 300
mg/dLBUN = 18
mg/dLCreatinine = 1.1
mg/dL
Which osmolality result is
consistent with these
results?.
, Potassium
The valinomycin membrane electrode is most
A liquid ion-exchange
selective for potassium as opposed to sodium,
membrane electrode
glucose, or chloride which utilize different
using the antibiotic
membranes for their respective electrodes.
valinomycin is MOST
Valinomycin, which is neutral in charge, has been
selective for:
incorporated into organic liquid membranes
resulting in a sensor with a very high selectivity for
potassium.
What should safety A written safety policy
management start with in
order to ensure clarity
and consistency?
Which of the following High-frequency antigens are common, but it is
statements about high- difficult to identify their corresponding antibodies.
frequency antigens is
correct?
Found in a healthy individual
An adult's plasma cortisol
of 22 µg/dL at 8:00 a.m.
Normal levels: 5-23 µg/dL at 8:00 a.m.
and 10 µg/dL at 4:00 p.m.
3-16 µg/dL at 4:00 p.m.
would be:
<50% of 8:00 a.m. values at 8:00 p.m.
A peripheral smear Microcytosis, low variation of cell volume
demonstrates a
population of red cells
that are mostly 5 - 5.5 µm
in diameter. The CBC data
shows RDW of 13%
(reference range 11.5-
14.5%). Which of the
following morphologies
is consistent with these
findings?
