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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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Maximum reabsorption of HCO3 - occurs in
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The correct answer is  The process of bicarbonate reabsorption occurs predominantly in the proximal tubule (about 90%). The rest occur in the thick ascending limb and in the collecting tubule. All involve hydrogen ion secretionRef: Ganong&;s Review of Medical Physiology, 23rd edition, page no: 680