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Author Question: Which type of white blood cell contains preformed granules of vasoactive amines? a. Neutrophil ... (Read 122 times)

daltonest1984

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on: Jun 25, 2018
Which type of white blood cell contains preformed granules of vasoactive amines?
 
  a. Neutrophil
  b. Eosinophil
  c. Monocyte
  d. Basophil

Question 2

An adult patient's blood sample is analyzed in a laboratory. Assuming a normal sample, which type of white blood cell accounts for the highest percentage?
 
  a. Neutrophil
  b. Eosinophil
  c. Basophil
  d. Lymphocyte


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k2629

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Reply #1 on: Jun 25, 2018
Answer to Question 1

ANS: D
Basophils have cytoplasmic granules that contain vasoactive amines (e.g., histamine) and an an-ticoagulant (heparin). Their function is similar to tissue mast cells. Neutrophils are the chief phagocytes of early inflammation. Eosinophils ingest antigen-antibody complexes and are in-duced by IgE-mediated hypersensitivity reactions to attack parasites. Monocytes do not have amines, and their job is to help fight infection.

Answer to Question 2

ANS: A
Neutrophils constitute about 40-60 of the total leukocyte count in adults. The eosinophils, which have large, coarse granules, constitute only 1-4 of the normal leukocyte count in adults. Basophils make up less than 1 of the leukocytes. Lymphocytes constitute approximately 36 of the total leukocyte count.


daltonest1984

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Reply 2 on: Jun 25, 2018
:D TYSM

sarah_brady415

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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