Deck 1: An Overview of Clinical Laboratory Hematology

Question 1

Select the term that describes a low white blood cell count.

A)leukopenia
B)leukocytosis
C)neutropenia
D)leukemia

Answer 1

leukopenia

Question 2

Hematocrit is also called

A)white cell count.
B)bone marrow examination.
C)red blood cell (RBC) count.
D)packed red cell volume.

Answer 2

packed red cell volume.

Question 3

Which of the following can be evaluated only through the microscopic examination of a stained blood film?

A)white blood cell (WBC) count
B)reticulocyte count
C)hemoglobin concentration
D)presence or absence of cytoplasmic inclusions

Answer 3

presence or absence of cytoplasmic inclusions

Question 4

The primary function of platelets is to

A)defend the body against bacterial invasion.
B)carry oxygen to tissues.
C)facilitate blood clotting.
D)regulate acid-base balance.

Question 5

Hematology is the study of

A)blood cells.
B)serum electrolytes.
C)plasma hormone levels.
D)bacteria in the blood.

Question 6

Who is ultimately responsible for determining the specimen integrity before analysis?

A)medical laboratory professional
B)nursing staff
C)phlebotomist
D)specimen-processing personnel

Question 7

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.
C)when flag limits established by medical laboratory scientists in the laboratory are exceeded.
D)when the white count is elevated.

Question 8

Upon centrifugation of a blood specimen,the layer between the red blood cells and plasma is called the

A)hematocrit.
B)buffy coat.
C)serum.
D)platelet pellet.