This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Renal physiology, Subject name: Physiology
Minimum reabsorption through renal tubule, among the following 
Select and explain. 
A. Glucose, B. HCO3, C. Urea, D. Uric acid
C: Urea
Answer: C: Urea 
Explanation: Urea is a toxic waste product and it reabsorbed in minimal level.Ref: Ganong&;s Review of Medical Physiology; 24th edition; page no: 678