When a child ingests acetaminophen, what is the first action the nurse should take?

When a child ingests acetaminophen, the most critical immediate action is to assess the airway. This step is paramount because airway patency is essential to ensure the child can breathe properly and that there are no obstructions or compromises to their respiratory function. In any emergency situation, especially involving potential poisoning or overdose, the priority is to ensure that the airway is clear and that the child can maintain adequate ventilation.

After securing the airway, the subsequent actions can involve further evaluation of the situation, such as administering activated charcoal if indicated, reassuring the caregiver, or checking serum acetaminophen levels to assess the extent of the overdose. However, the initial focus must always be on the child's immediate safety and ability to breathe. Assessing the airway provides critical information that informs all subsequent interventions.