The first-line therapy of atopic dermatitis (AD) is

Correct Answer: A

Rationale: Regular use of moisturizers is essential for maintaining skin hydration and barrier function.

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: Intubation is indicated in neonates when there is inadequate oxygenation despite supplemental oxygen, as it may be necessary to provide more effective ventilation and support for gas exchange.

Correct Answer: A

Rationale: Hypotension is a late sign of shock, while early signs include tachycardia and vasoconstriction.

Correct Answer: D

Rationale: Hurler syndrome is a metabolic disorder and does not typically cause generalized edema in newborns. The other conditions listed are associated with fluid accumulation and edema.