A patient with aplastic anemia has ANC 400. Which is the highest priority?

An absolute neutrophil count of 400 cells/mm³ represents severe neutropenia, placing the patient at extreme risk for life-threatening bacterial and fungal infections. The normal ANC is approximately 1,500–8,000 cells/mm³; counts below 500 cells/mm³ are considered critically low, and infections in this setting can be rapidly fatal because the patient has virtually no innate immune response to combat pathogens. The highest priority nursing action is implementing neutropenic precautions, which include placing the patient in a private room, requiring meticulous hand hygiene from all staff and visitors, avoiding fresh flowers and plants (which harbor mold and gram-negative bacteria), restricting raw fruits and vegetables, and monitoring closely for subtle signs of infection such as low-grade fever. Fresh flowers should be removed precisely because they pose an infection risk — this is part of neutropenic precautions, not a separate intervention. An exercise program is inappropriate and unsafe for a critically ill patient with severe bone marrow failure. Iron supplements address iron-deficiency anemia and are not relevant to aplastic anemia, where the problem is failure of all blood cell lines. Neutropenic precautions directly address the immediate, life-threatening vulnerability and are always the highest priority in this clinical picture.