Physiology Renal physiology 404179ca Which of the following ion is least absorbed in tubules? A Sodium B Urea C Creatinine D Glucose High-Yield Explanation The urinary plasma ratio of Creatinine is 1:150 which shows the least reabsorption Glucose - 0, Sodium- 0.6, Urea- 60 Ref: Ganong 25th ed/page 679