The nurse is interviewing the father of 10-month-old Megan. She is playing on the floor when she notices an electric outlet and reaches up to touch it. Her father says no firmly and removes her from near the outlet. The nurse should use this opportunity to teach the father that Megan:

Correct Answer: A

Rationale: By age 10 months, children are able to associate meaning with words. In this scenario, Megan is old enough to understand the word "no" and the father's use of verbal and physical cues to alert her to dangerous situations is appropriate and effective.

Correct Answer: D

Rationale: Acute rheumatic fever recurrence requires strict adherence to the Jones criteria to confirm the diagnosis, ensuring the presence of major and minor criteria along with evidence of prior streptococcal infection.

Correct Answer: D

Rationale: Chest compressions in infants are done using 2 fingers in the center of the chest, ensuring adequate depth and avoiding excessive pressure on fragile ribs.

Correct Answer: B

Rationale: The steeple sign, seen on X-ray, is a hallmark of viral croup, indicating subglottic airway narrowing.

Correct Answer: B

Rationale: Second-generation antihistamines cause less sedation than first-generation drugs, making them preferable for daily use without impairing cognitive function.