Following acute bronchiolitis, which virus is associated with the long-term complication of bronchiolitis obliterans?

Correct Answer: A

Rationale: Adenovirus is the most common viral cause of post-bronchiolitis obliterans, a chronic lung disease following severe bronchiolitis.

Correct Answer: C

Rationale: Wilson's disease is an autosomal recessive disorder characterized by defective copper excretion, leading to high urinary copper and low ceruloplasmin levels.

Correct Answer: D

Rationale: Anaphylactic shock is a severe allergic reaction characterized by vasodilation, airway swelling, and circulatory collapse, requiring immediate epinephrine administration.

Correct Answer: A

Rationale: Administering vitamin K at birth prevents hemorrhagic disease of the newborn

Correct Answer: A

Rationale: Hypotension is a late sign of shock in infants; early signs include tachycardia and irritability.