Which is not a sign of moderate to severe airway obstruction that might result from allergic response?

Correct Answer: A

Rationale: Dennie lines are not a sign of airway obstruction; they are associated with atopic dermatitis.

Correct Answer: A

Rationale: Peribronchial thickening is commonly seen in children with asthma due to chronic airway inflammation and mucus buildup.

Correct Answer: A

Rationale: Eosinophilia is not typically associated with Giardia infection, but it is common in the other conditions listed.

Correct Answer: B

Rationale: Hyperinsulinism is a common cause of persistent neonatal hypoglycemia due to excessive insulin production. It requires medical management with dextrose infusions or medications like diazoxide to prevent neurodevelopmental impairment.

Correct Answer: A

Rationale: Squatting helps increase systemic vascular resistance, reducing the right-to-left shunt and improving oxygenation in Tetralogy of Fallot.