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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
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Antibody seen in neonatal lupus with congenital heart block:
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The correct answer is  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.