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Author Question: Diagnostic testing at or near the site of patient care is known as: a. Preanalytic testing b. ... (Read 84 times)

Deast7027

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on: Jun 25, 2018
Diagnostic testing at or near the site of patient care is known as:
 
  a. Preanalytic testing
  b. Point-of-care testing (POCT)
  c. Neutral-site testing
  d. Clinical Laboratory Improvement Amendments (CLIA) testing

Question 2

A 1:20 dilution of blood is made for a white count, and the following number of cells counted in the four large corner mm2 of the hemocytometer: 12, 28, 18, and 15. What should be done next?
 
  a. Report the white count as 3.7  109/L.
  b. Clean the hemocytometer and recharge with a well-mixed dilution.
  c. Increase the number of mm2 counted.
  d. Compare this cell count to the one on the other side.


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stanleka1

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

ANS: B
Diagnostic testing at or near the site of patient care is known as POCT.

Answer to Question 2

ANS: B
The distribution of cells in these four mm2 is unacceptable (exceeds 10 cells); this is not random distribution. Unacceptable distribution makes the cell count invalid. Ideally, another dilution should be made, and it should be well mixed before charging the chamber. Other possible reasons for poor distribution include uneven flow when charging the chamber, dirt or oil on the surface of the chamber or coverslip, and disturbing the coverslip while counting the cells.


Deast7027

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Reply 2 on: Jun 25, 2018
Gracias!

xiaomengxian

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Reply 3 on: Yesterday
:D TYSM

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