A 3-week-old male baby develops a rash involving the face and periorbital area after exposure to sunlight; you suspect neonatal lupus. The NEXT step of management of the baby is

Correct Answer: A

Rationale: Anti-Ro/SSA antibodies are key in diagnosing neonatal lupus and predicting congenital heart block.

Correct Answer: C

Rationale: Late-phase reactions to venom include serum sickness, vasculitis, nephrotic syndrome, and hemolytic anemia, but encephalopathy is not a common delayed reaction to venom exposure.

Correct Answer: D

Rationale: While antihistamines, hypoparathyroidism, and prolonged school absences can cause anxiety, carbonated beverages do not directly lead to anxiety in children.

Correct Answer: C

Rationale: Renal tubular acidosis causes normal anion gap metabolic acidosis, unlike other conditions listed, which lead to a high anion gap due to acid accumulation.

Correct Answer: D

Rationale: MAS typically occurs in term or post-term infants, not preterm or near-term infants. The other statements are true regarding MAS.

Correct Answer: D

Rationale: Atopic dermatitis symptoms often improve over time, though they may persist into adulthood.

Correct Answer: A

Rationale: Asthma is less likely to cause failure to thrive compared to aspiration, food allergy, cystic fibrosis, or immunodeficiency, which directly affect nutrition and respiratory function.

Correct Answer: D

Rationale: Research indicates that approximately 90% of youths who complete suicide have an underlying psychiatric illness, highlighting the critical link between mental health and suicide risk.

Correct Answer: A

Rationale: Respiratory distress syndrome (RDS) is the most common cause of perinatal mortality in preterm infants, caused by insufficient surfactant production leading to lung collapse and difficulty breathing.