This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: New Born Infants, Subject name: Pediatrics
Antibody seen in neonatal lupus with congenital heart block: 
Select and explain. 
A. Anti-ribosomal, B. Anti-Ro (SS-A), C. Anti-neuronal, D. Anti-histone
B: Anti-Ro (SS-A)
Answer: B: Anti-Ro (SS-A) 
Explanation: b. Anti-Ro (SS-A)(Ref: Nelson's 20/e p 1176-1180, Ghai 8/e p 628)Anti-Ro/La (SS-A against hY RNA is seen in Sicca syndrome, neonatal lupus with congenital heart block.