What Error Was Probably Made If Red Cells Are Seen

question 18

Multiple Choice

What error was probably made if red cells are seen when attempting to manually count white blood cell (WBCs) on a hemocytometer?

• A) The Unopette was not mixed before charging the hemocytometer.
• B) Diluent was squeezed out and lost when filling the Unopette.
• C) The wrong dilution was made.
• D) The Unopette was not allowed to sit for 10 minutes for complete red blood cell (RBC) lysis.

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