<prompt> A 68-year-old man with prostate cancer and bone metastases presents with shaking chills and fever. The peripheral WBC count is 1,000mL normal 4,000 to 11,000mL. Which of the following terms best describes this hematologic finding?LeukocytosisLeukopeniaNeutrophiliaLeukemoid reaction  <response>: LeukopeniaAbsolute decrease in the circulating WBC count. It is occasionally encountered under conditions of chronic inflammation, especially in patients who are malnourished or who suffer from a chronic debilitating disease. Other cause can be typhoid fever and ceain viral and Rickettsial infections. -Leukocytosis is defined as an absolute increase in the circulating WBC count. -Neutrophilia is defined as an absolute increase in the circulating neutrophil count. -Pancytopenia refers to decreased circulating levels of all formed elements in the blood. 