This document discusses neutropenia, a decreased white blood cell count that increases the risk of infection. It describes mild, moderate, and severe types of neutropenia based on absolute neutrophil count levels. It provides precautions for cleanliness like avoiding flowers and raw food when the neutrophil count is low. If a fever is present during neutropenia, the patient should inform their doctor and reverse barrier nursing may be needed where staff wear protective equipment to prevent the patient from getting an infection.