What immediate action should the nurse take after assessing a child's airway following acetaminophen ingestion?

After assessing a child's airway following acetaminophen ingestion, administering activated charcoal is an appropriate immediate action if the ingestion was recent and the child is alert and able to protect their airway. Activated charcoal is commonly used in cases of poisoning or overdose because it can absorb the toxic substance, reducing its absorption into the bloodstream. In the case of acetaminophen, the timing of administration is critical; activated charcoal is most effective when given within one hour of the ingestion.

While reassuring the mother may offer emotional support, it does not address the immediate medical concern regarding the child's safety and health after the ingestion. Performing a physical exam or checking serum acetaminophen levels are also essential steps in the management of potential overdose but would typically follow the immediate action of administering activated charcoal when indicated. The priority is to intervene quickly to limit the effects of the toxin and stabilize the child as necessary.