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ADA NBDHE Dental Hygienist

Category - Scientific Basis for Dental Hygiene Practice

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What is the normal white blood cell count?

4,000 to 10,000/mm^³
5,000 to 15,000/mm^³
2,000 to 13,000/mm^³
2,000 to 5,000/mm^³

Explanation

Answer: A - The normal white blood cell count is 4,000 to 10,000/mm^³. During an inflammatory reaction, particularly with an infection, the count can increase to 15,000 or 20,000 and sometimes to extremely high levels of over 40,000/mm^³.

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