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1. Chapter 01-01
Hematology is the study of:
*a. blood cells.
b. serum electrolytes.
c. plasma hormone levels.
d. bacteria in the blood.
General Feedback:
Hematology is the study of blood cells—red blood cells, white blood cells, and platelets. Plasma
and serum electrolytes and hormone levels are evaluated in various subdivisions of clinical chemistry, and
bacteria are evaluated in clinical microbiology.
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2. Chapter 01-02
The morphology of blood cells is important to evaluate:
a. every time a complete blood count (CBC) is requested on a patient.
b. when an instrument-generated flag is obtained.
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*c. when a profiling instrument result is abnormal.
d. when the white count is elevated.
General Feedback:
Every laboratory must determine—based on its instrumentation, needs of the clinician and other
parameter flags that alert the medical laboratory scientist to the necessity for further evaluation—when it is
necessary to evaluate cell morphology. Many instrument-generated flags, although useful, may not require
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review. If an automated CBC does not suggest the need, no reason exists to evaluate the blood film, even if
the white count is elevated.
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3. Chapter 01-03
Who is ultimately responsible for determining the specimen integrity before analysis?
*a. Medical laboratory professional
b. Nursing staff
c. Phlebotomist
d. Specimen-processing personnel
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General Feedback:
The medical laboratory scientist is responsible for ensuring the integrity of a specimen before
analysis. Only he or she can judge whether the specimen is acceptable so that valid results can be obtained.
Acceptable criteria include such things as type of specimen for the test ordered (e.g., blood, serum, urine);
appropriate additive present (if needed) and amount of specimen relative to the additive; time interval since
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obtained; and presence or absence of hemolysis, lipemia, and other similar conditions. None of the other
personnel named have the education and understanding to fully make that judgment.
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