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Author Question: What cells may demonstrate a coarse block pattern of activity with the PAS stain? a. Normal ... (Read 47 times)

jjjetplane

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on: Jun 25, 2018
What cells may demonstrate a coarse block pattern of activity with the PAS stain?
 
  a. Normal lymphocytes
  b. mature neutrophils
  c. Normal erythroid precursors
  d. Malignant lymphoblasts

Question 2

A patient has a white blood count of 35  109/L with a left shift. The leukocyte alkaline phosphatase stain is 220. Which of the following is most likely?
 
  a. Severe bacterial infection
  b. Chronic myelogenous leukemia
  c. Paroxysmal nocturnal hemoglobinuria
  d. Values normal


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missalyssa26

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

ANS: D
Malignant lymphoblasts may demonstrate a coarse block pattern of activity with the PAS stain. Normal lymphocytes and erythroid precursors are negative. Mature neutrophils demonstrate diffuse positive activity.

Answer to Question 2

ANS: A
A normal leukocyte alkaline phosphatase score should be roughly 20 to 100; therefore this score of 220 is very elevated. An elevated leukocyte alkaline phosphatase is consistent with a severe bacterial infection. Both chronic myelogenous leukemia and paroxysmal nocturnal hemoglobinuria have below-normal scores.


jjjetplane

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Reply 2 on: Jun 25, 2018
Great answer, keep it coming :)

robbielu01

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Reply 3 on: Yesterday
Excellent

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