Correct Answer: D

Rationale: N-acetylcysteine is the specific antidote for acetaminophen poisoning, working by replenishing glutathione and preventing liver damage. The other options are antidotes for different types of poisoning (e.g., Fomepizole for methanol or ethylene glycol poisoning).

Correct Answer: D

Rationale: Using simple diagrams helps school-age children understand what to expect in a procedure, catering to their developmental level and reducing anxiety. Informing toddlers too early can increase anxiety, and parents' presence is generally comforting, not discouraging.

Correct Answer: C

Rationale: Demonstrating on a doll helps the toddler understand what will happen in a non-threatening way, making the procedure less intimidating. Long teaching sessions or avoiding choices can increase anxiety.

Correct Answer: C

Rationale: Implanted ports like the Port-a-Cath are fully implanted under the skin, allowing the child to maintain regular physical activities, including swimming, without the risk of dislodging the catheter. Piercing the skin is still required for access, and self-administration is more complex.

Correct Answer: B

Rationale: The ventrogluteal site is free of significant nerves and vascular structures, making it a safer choice for intramuscular injections in young children compared to other sites that may be more prone to complications.