A Person with Mononucleosis Can Have a White Blood Cell

Question

A person with mononucleosis can have a white blood cell count as high as 18,000/mm³ of blood.

Accepted Answer

Mononucleosis is characterized by an increased number of white blood cells, specifically lymphocytes. The typical range for a white blood cell count is between 4,500 and 11,000/mm³ of blood, but in cases of mononucleosis, it can be as high as 18,000/mm³ or even higher.