Final answer:
The nurse should initiate bleeding precautions in the plan of care for a child with leukemia whose platelet count is 19,500 mm3 (19.5 × 10^9/L) to prevent bleeding and complications.
Step-by-step explanation:
The nurse should include Option 1: Initiate bleeding precautions in the plan of care for the child with leukemia whose platelet count is 19,500 mm3 (19.5 × 109/L). A platelet count of 19,500 mm3 is below the normal range (150,000-450,000 mm3), indicating thrombocytopenia, which is a low platelet count. Thrombocytopenia puts the child at risk for bleeding and complications.