When the Electronic Impedance Principle Is Used to Count Blood

question 8

Multiple Choice

When the electronic impedance principle is used to count blood cells,what is done to increase platelet-counting sensitivity?

• A)Decrease the size of the RBC/platelet aperture.
• B)Increase the size of the RBC/platelet aperture.
• C)Use a strong lysing agent to selectively lyse the RBCs.
• D)Lower the upper threshold for counting platelets so that even microcytic red cells are excluded.

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