In a toddler with a head injury and minor signs, what is the most appropriate discharge instruction?

• A. Return to the ED if vomiting or altered mental status occurs
• B. Remain at home with no monitoring
• C. Obtain a head CT now
• D. Admit for observation

Answer: (A)

The main idea here is knowing which signs after a head injury in a toddler signal a potential problem that needs urgent re-evaluation. After a head injury with only minor signs, the safest discharge instruction focuses on clear return precautions so caregivers can act quickly if the situation worsens.

Vomiting or altered mental status are important red flags. If either occurs, it suggests the possibility of evolving brain injury or increased intracranial pressure, and the child needs prompt re-evaluation in the ED. Providing this specific trigger helps ensure timely care and is more protective than a vague “watch at home” approach.

Why not other options? Requiring a head CT immediately isn’t appropriate for a stable child with minor symptoms, given the radiation exposure and the fact that imaging is reserved for kids with persistent symptoms or higher-risk features. Admitting for observation isn’t necessary when the child is doing well clinically; observation is typically reserved for those with concerning findings or inability to reliably monitor at home. Leaving the child at home with no monitoring also isn’t ideal because subtle changes can develop, and caregivers need concrete instructions on when to seek care.

So, the best discharge instruction is to return to the ED if vomiting or altered mental status occurs, because it provides a clear, actionable sign that immediate medical reassessment is needed.