Final answer:
The nurse should initiate airborne precautions for a child with varicella to prevent the spread of the virus. Maintaining room temperature or preparing for a lumbar puncture are not necessary interventions. Aspirin should not be administered due to the risk of Reye's syndrome.
Step-by-step explanation:
The nurse should include the following intervention for a child with varicella:
d. Initiate airborne precautions for the child
Varicella, also known as chickenpox, is a highly contagious disease that spreads through the air. Initiating airborne precautions, such as using masks and isolation rooms, helps prevent the spread of the virus to others. Maintaining a room temperature at a specific level or preparing the child for a lumbar puncture are not necessary interventions for varicella. While administering aspirin for high temperatures may be common in some cases, aspirin should not be given to children with a viral infection like varicella, as it increases the risk of developing Reye's syndrome.