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Author Question: Why are the red cells larger than normal in megaloblastic anemia? a. Increased concentration of ... (Read 79 times)

corkyiscool3328

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Why are the red cells larger than normal in megaloblastic anemia?
 
  a. Increased concentration of erythropoietin
  b. Increased release of reticulocytes
  c. Cells are made larger because fewer of them exist
  d. Cell division is impaired

Question 2

Megaloblastic anemias are caused by a defect in the synthesis of:
 
  a. Deoxyribonucleic acid (DNA)
  b. Ribonucleic acid (RNA)
  c. Erythropoietin
  d. Heme



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nikmaaacs

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Answer to Question 1

ANS: D
Red cell production is asynchronous in megaloblastic anemias, with nuclear development lagging behind that of the cytoplasm. Because DNA synthesis is affected, cell division does not occur normally and the cells become larger.

Answer to Question 2

ANS: A
Defects in DNA synthesis are the cause of most megaloblastic anemias (an exception would be in the myelodysplastic syndrome).




corkyiscool3328

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Reply 2 on: Jun 25, 2018
Excellent


Viet Thy

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Reply 3 on: Yesterday
Gracias!

 

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