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Author Question: Why are the red cells larger than normal in megaloblastic anemia? a. Increased concentration of ... (Read 36 times)

corkyiscool3328

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on: Jun 25, 2018
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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Reply #1 on: Jun 25, 2018
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

juliaf

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Reply 3 on: Yesterday
Gracias!

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