This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Diabites & Inappropriate Antidiuretic Hormone, Subject name: Medicine
A 35 years old man Ramu has fasting and post prandial blood sugar within normal limit but urine sugar is 3 plus (+++)* The diagnosis is. 
Select and explain. 
A. Renal Glycosuria, B. Pancreatic insufficiency, C. Alimentary glycosuria, D. High carbohydrate diet taken in the morning.
A: Renal Glycosuria
Answer: A: Renal Glycosuria 
Explanation: Ans. is 'a' Renal Glycosuria. /Reference Harrison 15/e p 2315]Patient is excreting Glucose at normal blood glucose concentration. This feature is characteristics of renal glycosuria."It is characterized by urinary excretion of Glucose at normal concentrations of blood glucose"The condition is benign but occasionally glycosuria may be severe enough to cause polyuria and polydipsia.