This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Basic Concepts and Vascular changes of Acute Inflammation, Subject name: Pathology
[{'content': 'A 68-year-old man with prostate cancer and bone metastases presents with shaking chills and fever. The peripheral WBC count is 1,000/mL (normal = 4,000 to 11,000/mL). Which of the following terms best describes this hematologic finding? \nSelect and explain. \nA. Leukocytosis, B. Leukopenia, C. Neutrophilia, D. Leukemoid reaction', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Leukopenia=Absolute 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.', 'role': 'assistant'}]