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Test Bank For Rodak's Hematology: Clinical Principles and Applications, 7th Edition by; Elaine M. Keohane| All Chapters 1-43| Latest Edition

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Test Bank For Rodak's Hematology: Clinical Principles and Applications, 7th Edition by; Elaine M. Keohane| All Chapters 1-43| Latest Edition

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1.
Chapter 01-01
y



Hematology is the study of:
y y y y

, *a. blood cells.
y y



b. serum electrolytes. y



c. plasma hormone levels. y y



d. bacteria in the blood. y y y




General Feedback: y



Hematology is the study of blood cells*red blood cells, white blood cells, and
y y y y y y y y y y y y



y platelets. Plasma and serum electrolytes and hormone levels are evaluated in various
y y y y y y y y y y y



subdivisions of clinical chemistry, and bacteria are evaluated in clinical microbiology.
y y y y y y y y y y y




2. Chapter 01-02 y



The morphology of blood cells is important to evaluate:
y y y y y y y y




a. every time a complete blood count (CBC) is requested on a patient.
y y y y y y y y y y y



b. when an instrument-generated flag is obtained.
y y y y y



*c. when a profiling instrument result is abnormal.
y y y y y y y



d. when the white count is elevated.
y y y y y y




General Feedback: y



Every laboratory must determine*based on its instrumentation, needs of the
y y y y y y y y y



clinician and other parameter flags that alert the medical laboratory scientist to the necessity
y y y y y y y y y y y y y y



for further evaluation*when it is necessary to evaluate cell morphology. Many instrument-
y y y y y y y y y y y y



generated flags, although useful, may not require review. If an automated CBC does not
y y y y y y y y y y y y y



y suggest the need, no reason exists to evaluate the blood film, even if the white count is
y y y y y y y y y y y y y y y y



y elevated.




3. Chapter 01-03 y



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




*a. Medical laboratory professional
y y y



b. Nursing staff y



c. Phlebotomist
d. Specimen-processing personnel y




General Feedback: y



The medical laboratory scientist is responsible for ensuring the integrity of a
y y y y y y y y y y y



y specimen before analysis. Only he or she can judge whether the specimen is acceptable so
y y y y y y y y y y y y y y



y that valid results can be obtained. Acceptable criteria include such things as type of specimen
y y y y y y y y y y y y y y

,y for the test ordered (e.g., blood, serum, urine); appropriate additive present (if needed) and
y y y y y y y y y y y y y



y amount of specimen relative to the additive; time interval since obtained; and presence or
y y y y y y y y y y y y y



y absence of hemolysis, lipemia, and other similar conditions. None of the other personnel
y y y y y y y y y y y y



y named have the education and understanding to fully make that judgment.
y y y y y y y y y y

, 4. Chapter 01-04 Hematocrit is y y y



also called:
y y




a. white cell count. y y



b. bone marrow examination. y y



c. red blood cell (RBC) count. y y y y



*d. packed red cell volume.
y y y y




General Feedback: y



Historically the hematocrit was determined by centrifuging an aliquot of
y y y y y y y y y



anticoagulated whole blood under specified conditions (e.g., centrifugal force, capillary tube
y y y y y y y y y y y



y length, and bore diameter) and then determining the ratio of the space occupied by the
y y y y y y y y y y y y y y



y packed red cells compared with that of the entire blood volume in the capillary tube, often
y y y y y y y y y y y y y y y



y expressed as a percentage. Hence, it is also called the packed yred ycell yvolume.
y y y y y y y y y y




5. Chapter 01-05 y



The primary function of platelets is to:
y y y y y y




a. defend the body against bacterial invasion. y y y y y



b. carry oxygen to tissues. y y y



*c. facilitate blood clotting.
y y y



d. regulate acid-base balance.
y y y




General Feedback: y



Whenever disruption occurs to a blood vessel so that bleeding results, platelets
y y y y y y y y y y y



y respond initially to stop the bleeding in small vessels; they also play an integral role in
y y y y y y y y y y y y y y y



y facilitating the formation of a blood clot. White cells defend against bacterial invasion; red
y y y y y y y y y y y y y



y cells (i.e., hemoglobin) carry oxygen to tissues; and a complex interaction of plasma
y y y y y y y y y y y y



y electrolytes, proteins, and carbon dioxide participates in acid-base balance.
y y y y y y y y




6. Chapter 01-06 y



Which of the following can be evaluated only ythrough the microscopic examination of a stained
y y y y y y y y y y y y y



y blood film? y




a. White blood cell (WBC) count y y y y



b. Reticulocyte count y



c. Hemoglobin concentration y

Connected book
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Elaine M. Keohane, Michelle Montgomery Preston, Kamran M. Mirza, Jeanine M. Walenga Rodak\'s Hematology - E-Book
Publisher: 2024 ISBN: 9780323937627 Edition: Unknown

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