For a 2-year-old girl with thumb sucking behavior, what is the best response?

Correct Answer: B

Rationale: Ignoring the behavior allows the child to outgrow it naturally without drawing unnecessary attention. Reassurance and encouragement are also helpful but ignoring avoids reinforcing the habit.

Correct Answer: C

Rationale: Hereditary spherocytosis is typically autosomal dominant, not recessive, and is diagnosed via osmotic fragility testing.

Correct Answer: D

Rationale: Gestational age and birth weight are the most critical risk factors for NEC, with lower gestational age and lower birth weight significantly increasing the risk.

Correct Answer: C

Rationale: Distributive shock, such as in early septic shock, is caused by widespread vasodilation and decreased systemic vascular resistance.

Correct Answer: A

Rationale: NSAIDs are often used as first-line therapy to reduce inflammation and pain in juvenile idiopathic arthritis.