Select the normal approximate percentage of the various WBCs in ...

[Jkov05]

Select the normal approximate percentage of the various WBCs in an adult.
 
  Neut Band EO Baso Lymph Mono
 
  a. 63 2 4 1 25 5
  b. 29 11 9 11 10 30
  c. 60 2 4 11 4 19
  d. 59 26 1 1 11 2

Question 2

A blood specimen could not be focused on oil immersion although it could be focused on both 10 and 40. What is the most likely cause?
 
  a. The pH of the stain is too acidic.
  b. The specimen is too thick.
  c. Something is wrong with the oil lens.
  d. The specimen is probably upside down.

[millet]

Answer to Question 1

ANS: A
In an adult the reference ranges for each type of white cell fall in the approximate ranges given in Choice a. In Choice b, too few neutrophils and lymphocytes are seen, as well as too many of the other cell types. Choice c has too many basophils, too few lymphocytes, and too many monocytes. Choice d has too many bands and too few lymphocytes.

Answer to Question 2

ANS: D
If the specimen can be seen under both 10 and 40 but not under 100, it most likely is upside down on the stage.