This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Blood Bank & Transfusion Therapy, Subject name: Medicine
What is the Neutrophil count for moderate neutropenia? 
Select and explain. 
A. < 500/mm3, B. 500-1000/mm3, C. >1000/mm3, D. 100/mm3
B: 500-1000/mm3
Answer: B: 500-1000/mm3 
Explanation: Neutropenia is classified as mild, moderate, or severe based on the Absolute Neutrophil Count. Mild neutropenia 1000-1500 cells/mL Moderate neutropenia 500-1000/mL Severe neutropenia <500 cells/mL The risk of bacterial infection is related to both the severity and duration of the neutropenia.