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Exam (elaborations)

Cls Exam Questions And Answers 2025

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CLS EXAM QUESTIONS AND ANSWERS 2025

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CLS EXAM LATEST
ANSWER ALL QUESTIONS IN THIS SECTION



QUESTION 1



The antibody class that is predominant in secretions is:

a) IgG

b) IgM

c) IgA

d) IgD

e) IgE - ANSWER-c



The class of antibody produced first after exposure to antigen is:

a) IgG

b) IgM

c) IgA

d) IgE

END OF
PAGE 1

, CLS EXAM LATEST
e) IgD - ANSWER-b



Specific immunity is characterized by all of the following EXCEPT:

a) specificity

b) inflammation

c) recognition

d) memory - ANSWER-b



All of the following are characterisitcs of the inflammatory response EXCEPT:

a) phagocytic action of neutrophils

b) redness, swelling, pain, and heat

c) complement proteins

d) antibody production - ANSWER-d



The largest immunoglobulin:

a) IgG

END OF
PAGE 2

, CLS EXAM LATEST
b) IgM



c) IgA

d) IgE

e) IgD - ANSWER-b



Which is true concerning the history of transfusion medicine?

a) James blundell performed the first recorded successful blood transfusion of
human blood

b) Karl Landsteiner discovered the ABO group in 1930

c) the first hospital blood bank was in San Francisco

d) the discovery of BSE in the 1980s dramatically changed blood donor policy
- ANSWER-a



The operation of blood banks is ultimately regulated by the:

a) American Associtation of Blood Banks (AABB)

b) U.S. Food and Drug Administration (FDA)

END OF
PAGE 3

, CLS EXAM LATEST
c) Centers for Disease Control and Prevention (CDC)

d) all of the above - ANSWER-b



Typical testing performed in immunohematology labortories includes all of the
following EXCEPT:

a) routine blood typing

b) evaluation of suitable blood donors

c) providing compatible blood for transfusion

d) hemoglobin and hematocrit - ANSWER-d



The components easily obtained from 1 unit of donated blood include all of the
following EXCEPT:

a) red blood cells

b) platelet concentrate

c) leukocyte concentrate

d) fresh frozen plasma - ANSWER-c



END OF
PAGE 4

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