Clinical Hematology Laboratory
---- - ANSWER This instrument error indicates a voteout:
----- - ANSWER When ______ appears it means a "total Voteout" occured.
-cytosis and -philia - ANSWER These suffices refer to an increase in a cell count:
-cytosis, -philia - ANSWER _____ and _____ refer to an elevated WBC value.
-Penia - ANSWER ______ refers to a decreased WBC value.
-penia - ANSWER This suffix refers to a decrease in a cell count:
.... - ANSWER This instrument error marks a calculated result that couldn't be calculated
because of missing values:
****** cell - ANSWER
****** cell - ANSWER What is this?
#/100 wbcs - ANSWER nRBCs are reported in:
++++ - ANSWER This instrument error indicates that the result is out of linearity:
+++++ - ANSWER When ______ appears it means that the results exceeds instrument
linearity.
<100 - ANSWER PLT in acute leukemia is:
>20% - ANSWER Blast count in acute leukemias is:
>5 - ANSWER A critical INR is:
0.0-0.4, 0-1 - ANSWER The normal absolute count for a basophil is ____x 10^3 µL an the
relative is _____%.
0.0-0.4, 0-5 - ANSWER The normal absolute count for an Eosinophil is ____x 10^3 µL an the
relative is _____%.
0.0-0.7, 0-5 - ANSWER The normal absolute count for a band is ____x 10^3 µL an the
relative is _____%.
0.004 - ANSWER An RBC square holds ___μL of fluid.
0.1 - ANSWER A WBC square holds ___μL of fluid.
0.1-0.8, 2-10 - ANSWER The normal absolute count for a monocyte is ____x 10^3 µL an the
relative is _____%.
0.5 - ANSWER Hematopoietic stem cells make up ___% of nucleated blood cells in the bone
marrow.
0.8-1.3 - ANSWER The normal range for INR is:
1 - ANSWER Each molecule of Fe at the center of the heme ring can bind _____ molecule(s)
of oxygen.
,Clinical Hematology Laboratory
1 - ANSWER Myeloblasts are step ____ in neutrophil maturation.
1 - ANSWER The results from the two samples in a spun hematocrit should agree to ±
___%.
1:9 - ANSWER The proper ratio of anticoagulant to blood in light blue top tubes is:
1.0-4.8, 25-35 - ANSWER The normal absolute count for a lymphocyte is ____x 10^3 µL an
the relative is _____%.
1.8-7.0, 40-80 - ANSWER The normal absolute count for a neutrophil is _____x 10^3µL and
the relative is _____%.
10 - ANSWER ESR for a child should be ≤___mm/hr.
10, 15000 - ANSWER To give an estimated platelet count, count ___ fields and multiple the
average count by ____.
10, 2000 - ANSWER For a WBC estimate, ___ fields should be counted and the average
multiplied by ____.
100 - ANSWER For a wbc differential, _____ wbcs should be counted and differentiated by
type.
100 - ANSWER When using a hemocytometer, at least ____ cells should be counted.
100x - ANSWER When performing a wbc differential, rbc morphology eval, and platelet
estimate, set the microscope to this power:
10x - ANSWER When looking for platelet clumps, artifacts, and unusual distribution of cells,
set the microscope to this power:
12.0-14.6 - ANSWER Normal range for RDW is _________%, the actual result is a statistical
value known as a coefficient of variation (CV)
120 - ANSWER Erythrocytes have a lifespan of about ______ days.
14.7-17.4, 12.0-16.0 - ANSWER Normal Hgb ranges for a male are _____g/dL and for a
female are _____g/dL.
15, 20 - ANSWER ESR for a male below 50 should be ≤___mm/hr and above 50 should be
≤___mm/hr.
150-450 - ANSWER The normal platlet range is ______ x 10^3 µL
150-450 - ANSWER The normal PLT count is __-__*10³/μL
150, 50, 10 - ANSWER Thrombocytopenia is defined as a platelet count <____, however risk
of serious bleeding is low until the count is <_____, and the most severe complications typically
occur at <_____.
18 days - ANSWER Hematopoiesis begins at ______ gestation.
2 - ANSWER Promyelocytes are step ____ in neutrophil maturation.
,Clinical Hematology Laboratory
2 - ANSWER Prorubricytes are step _____ in erythrocyte maturation.
2-20 - ANSWER A particle __-__fL is counted as a platelet.
2-20 - ANSWER Any particle between _____fL is counted as a platelet using the coulter
principle and plotted onto a histogram.
2-3 - ANSWER The nucleus of a mature eosinophil should have ____ lobes.
2,3, BPG - ANSWER Prolonged anemia may lead to increased concentrations of _____,
causing hypoxia in distal tissues and fatigue.
2.0-3.0 - ANSWER The therapeutic range for INR is:
20-30 - ANSWER To calculate the INR, the result should be divided by the average of the
results of _____ normal people, with the ISI as an exponent.
20, 30 - ANSWER ESR for a female below 50 should be ≤___mm/hr and above 50 should be
≤___mm/hr.
20.0, 7.0 - ANSWER Critical values for Hgb is anything >___g/dL and <___g/dL
200 billion - ANSWER The bone marrow releases about ______ erythrocytes every day.
24-360 - ANSWER Particles between ______fL are used to build the RBC histogram, which
are unimodal and follow a bell-shaped curve.
28-34 - ANSWER the normal range for MCH is ______pg.
28-35 - ANSWER The normal range for aPTT is:
3 - ANSWER Myelocytes are step ____ in neutrophil maturation.
3 - ANSWER Rubricytes are step _____ of erythrocyte maturation.
3/4 - ANSWER When performing a spun hematocrit, two capillary tubes should be filled to
__/__ full and centrifuged.
30 minutes - ANSWER Immediate neutrophilia is triggered by exercise or epinephrine
release, and usually lasts about:
32-36 - ANSWER Normal range for MCHC is __________g/dL
35 - ANSWER Particles ≥____ fL are counted as WBCs by the instrument.
35 - ANSWER Particles ≥___fL that pass throught the WBC aperture are counted as WBCs.
37C - ANSWER For both the aPTT and PT, the specimen is incubated at:
4 - ANSWER In children under _____, all bone marrow is red marrow.
4 - ANSWER Metamyelocytes are step _____ in neutrophil maturation.
4 - ANSWER Metarubricytes are step _____ in erythrocyte maturation.
4 - ANSWER Rouleaux are stacks of _____ or more erythrocytes.
, Clinical Hematology Laboratory
4-5 - ANSWER Acute neutrophilia usually becomes apparent within _____ hours of the
stressor.
4.5-11.0, 9.0-30.0 - ANSWER Normal WBC values for adults is _______ x 10^3 µL and for
newborns is _______ x 10^3 µL.
40x - ANSWER When looking for a good area in the feathered edge and performing a
manual wbc count, set the microscope to this power:
42-52, 34-46 - ANSWER The normal Hematocrit ranges for a male are ______%, and for a
female are _______ %.
5 - ANSWER Band neutrophils are step _____ in neutrophil maturation.
5 - ANSWER Reticulocytes are step ______ of erythrocyte maturation.
50 - ANSWER A metamyelocyte may exhibit indentation of up to ____% of a hypothetical
round nucleus.
50.0, 1.5 - ANSWER Critical High WBC is _____ x 10^3 µL and a critical low WBC is ____ x
10^3 µL.
6 - ANSWER To be called hypersegmented, a neutrophil must have at least ____ lobes.
6 months - ANSWER At ______ gestation, the site of hematopoiesis shifts to the bone
marrow.
6-8 - ANSWER A normal erythrocyte is __-__ μm in diameter.
6.8-10.2 - ANSWER Normal MPV range is _____fL.
60, 20 - ANSWER Critical Values for hematocrit are anything >___% and <___%, and should
be reported immediately
80-100 - ANSWER the normal range for MCV is ______fL.
80-100 - ANSWER The volume of a normal erythrocyte is __-__ fL.
9-12 - ANSWER The normal lifespan of a platelet is __-__ days.
A - ANSWER Hemoglobin ___ has the following structure: α₂β₂.
A dirty instrument or aging reagents and controls. - ANSWER What are some of the causes
of a trend?
abdominal organs - ANSWER ______ are specifically affected by sporadic Burkitt's
lymphoma.
abnormal bleeding - ANSWER The only clinical symptom of May-Hegglin anomaly is
typically:
abnormal development - ANSWER Dsyplasia means:
absolute - ANSWER A(n) _______ count gives the number of a subset of cells observed.
