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Author Question: What is the principle of impedance? Name at least two instruments that employ this method for blood ... (Read 62 times)

captainjonesify

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on: Jun 25, 2018
What is the principle of impedance? Name at least two instruments that employ this method for blood cell counting.
 
  What will be an ideal response?

Question 2

What is one advantage to using monoclonal antibodies rather than polyclonal antibodies in immunophenotyping?
 
  a. They are commercially available.
  b. The antigen can be recognized even if some parts of it are abnormal.
  c. They have high purity and reproducibility.
  d. They can be directly attached to fluorochromes.


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whitcassie

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

Answer: Impedance relies on the principle of increased resistance that occurs when a blood cell with poor conductivity passes through an electrical field. The number of pulses indicates the
count, and the height of the pulses indicates the relative volume of each cell passing through the photodetector. Instruments that use this method are Coulter  Gen-S, Coulter  LH series, Sysmex XE-2100TM, and Abbott CELL-DYN Sapphire .

Answer to Question 2

Correct Answer: C


captainjonesify

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Reply 2 on: Jun 25, 2018
Gracias!

ktidd

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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