This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Kidney, Subject name: Anatomy
Renal replacement therapy replaces all except - 
Select and explain. 
A. Endocrine function, B. Urine output, C. Blood biochemistry, D. Ultrafiltration
A: Endocrine function
Answer: A: Endocrine function 
Explanation: Renal replacement therapy does not replace the endocrine and metabolic functions of the kidney . It maintains plasma biochemistry (uraemic toxins, electrolytes acid base) It also removes fluid from the circulation (ultrafiltration) to maintain the plasma volume. Ref Harrison20th edition pg 290