The most common airway foreign bodies:

Correct Answer: D

Rationale: Vegetable matter, such as nuts, is the most common foreign body aspirated by children due to its size and texture.

Correct Answer: D

Rationale: Yellow fever vaccine is contraindicated in children with egg allergy as it is prepared using egg-based culture systems.

Correct Answer: C

Rationale: Rescue breathing should be prioritized in drowning cases to restore oxygenation before considering other interventions.

Correct Answer: B

Rationale: Food aversion is a psychological reaction, not a common cause of adverse food reactions.

Correct Answer: B

Rationale: Risperidone, an atypical antipsychotic, is effective in managing aggression and self-injurious behaviors in children with autism. Other medications target different symptoms or conditions.