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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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2nd Most Common Hb in adult is
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The correct answer is  a 2 ss 2 is the most abundant Hb in adult About 2.5% of the hemoglobin is hemoglobin A2, in which b chains are replaced by d chains (a2d2) which is second most abundant Hb in adult humanRef: Ganong's Review of Medical Physiology Twenty-Third Edition Page No: 522