PRACTICE TEST/STUDY GUIDE QUESTIONS WITH
VERIFIED 100% CORRECT ANSWERS
Large center square -Answer-When counting platelets using the unopette
system (a manual method), which area is used to count on the Neubauer
hemacytometer?
Methanol fixation -Answer-What is the first part of the staining process for
morphological examination?
Shift cells -Answer-On blood films prepared with Wright's stain, abnormally
early release of the RBCs from the marrow into the peripheral blood is
indicated by the presence of nucleated RBCs or polychromatophilic
macrocytes, also known as
New methylene blue method -Answer-An erythrocyte still possessing RNA is
referred to as a reticulocyte. What supravital stains bind, neutralize, and
cross-link ribonucleic acid (RNA)?
Chorea and undulant fever -Answer-In the vast majority of infections, there is
at least some increase in the ESR. What are two exceptions?
Histogram -Answer-What is used to evaluate size distribution curve of
leukocyte data and allows visualization of subpopulation of cells based on
their relative sizes?
,Westgard -Answer-Analyzing the quality control results, who developed the
rule that is used to evaluate control results when two or more levels of control
material are used?
flow cytometry -Answer-Which principal automated hematology analyzer
allows the simultaneous analysis of multiple characteristics through a laser
light beam?
Impedance -Answer-Which automated blood cell counting principle is based
on increased resistance that occurs when a blood cell with poor conductivity
passes through an electrical field?
Erythrocytes -Answer-Which cellular constituent of blood contains the vital
protein hemoglobin?
Prolonged washing -Answer-While performing a microscopic evaluation on a
peripheral blood smear, you notice the color is excessively pink. What could
be the cause?
Plasma cells. -Answer-B-lymphocytes differentiation is complex and proceeds
through both an antigen-independent and antigen dependent stage,
culminating in the generation of mature, end-stage, nonmotile cells called
Bleeding time. -Answer-Test for the vascular factors include the capillary
fragility test and
Closure time (CT) -Answer-What is a test system to assess platelet-related
primary hemostasis with greater accuracy and reliability than bleeding time?
, Disseminated intravascular coagulation (DIC). -Answer-Particle agglutination
is used for detecting D-dimers associated with
Platelet count, platelet aggregation assays, platelet adhesion, and clot
retraction -Answer-Current tests for platelets include:
Thrombin time -Answer-What laboratory test has the following
characteristics? Its purpose is plasma factors. It measures concentration and
activity of fibrinogen in stage III and monitors coumarin therapy.
Labile coagulation factor. -Answer-The activity of factor V in plasma
deteriorates even when the plasma is frozen; it is the most unstable of the
coagulation factors and is also known as
Fibrinogen. -Answer-The APTT measures factors XII, XI, IX, VIII, V, II and
Extrinsic pathway -Answer-Prothrombin time measures which pathway?
Prothrombin -Answer-Thrombin is generated from a precursor of this
substance and is involved in the common pathway of both the extrinsic and
the intrinsic clotting pathways. What is synthesized by the liver through the
action of vitamin K?
Serotonin -Answer-What is released from the platelets as they adhere to the
margins of the injury in the wall of the blood vessel? It promotes local, direct,
biochemically stimulated narrowing of the torn blood vessel and of locally
intact blood vessels in the same vicinity as the injury.