Certification
Exam Sets Questions With Reviewed
Correct Detailed Answers
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1. An anticoagulant is used when collecting a blood sample, the fluid obtained
from the sample after it has been centrifuged is? - ANSWER Plasma
2. Which type of white blood cells' major function is to produce antibodies? -
ANSWER Lymphocyte
3. Which Romanowsky stain is buffered to an acidic pH and stains the basic
components of the cells? - ANSWER Eosin
4. Which anticoagulant is commonly used in blood transfusion? - ANSWER
Citrate
5. An error occurred in laboratory results and was traced back to the sample
to be hemolyzed. What type of a variable error is this? - ANSWER Pre-
analytic variable
6. Which classification of anemia is characterized by normal-sized
erythrocytes? - ANSWER Normocytic
,7. Which of the following anticoagulants should not be used if analyzing WBC
morphology? - ANSWER Heparin
8. Which anticoagulant is best known as a glucose preservative? - ANSWER
Sodium fluoride
9. Which is another term for hematocrit? - ANSWER PCV (Packed Cell
Volume)
10.What procedure must always accompany a complete blood count
evaluation to determine the accuracy of the test? - ANSWER
Morphologic evaluation
11.Which type of cell abnormality gives the erythrocytes a more darkly stained
appearance than normal cells and are usually microcytes or spherocytes? -
ANSWER Hyper chromatophilic
12.A blood slide reveals small erythrocytes. Which classification would best
describe this evaluation? - ANSWER Microcytic
13.Which is the term for the ratio or percent of weight for hemoglobin to the
volume in which it is contained? - ANSWER Mean corpuscular
hemoglobin concentration
14.A patient presents with suspected lead poisoning. Which of the following
would be a result of this poisoning? - ANSWER Basophilic stippling
, 15.Granulocytes are blood cells that have, what? - ANSWER specific
granules in their cytoplasm when the cells are mature.
16.Bone marrow samples should never be evaluated without which other
information from the peripheral blood film? - ANSWER White blood
cell count
17.Which term is used only when the morphologic abnormality cannot be
described using a more specific term? - ANSWER Poikilocytosis
18.Ratio - ANSWER The relationship of one quantity to one or more other
quantities that is expressed as a proportion of one to the others and
written either as as a fraction or linearly.
19.OSHA - ANSWER Mandates specific laboratory practice that must be
incorporated into the laboratory safety policy.
20.Biohazard - ANSWER Biological substances that contain infectious
agents that pose a threat to human health.
21.Bloodborne pathogen - ANSWER Infectious agents that are present in
the bloodstream.
22.Zoonoses - ANSWER Diseases that can be transmitted between
humans and animals.