This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
All of the following are associated with polyuria except: September 2007 
Select and explain. 
A. Diabetes insipidus, B. Diabetes mellitus, C. Rapidly progressive glomerulonephritis, D. Rapidly progressive glomerulonephritis
C: Rapidly progressive glomerulonephritis
Answer: C: Rapidly progressive glomerulonephritis 
Explanation: Ans. C: Rapidly progressive glomerulonephritis Polyuria is said to occur if a patient passess more than 3 litres of urine per day. Causes of polyuria Endocrine: - Diabetes mellitus - Cranial diabetes insipidus - Cushings syndrome Renal: Relief of chronic urinary obstruction - Early chronic pyelonephritis - Nephrogenic diabetes insipidus - syndrome Iatrogenic: - Diuretic therapy - Alcohol Other drugs, e.g. lithium, tetracyclines Metabolic: - Hypercalcemia - Primary hyperaldosteronism Psychological: - Psychogenic polydipsia (compulsive water-drinking) - Polyuria is an uncommon but serious complication of psychotic illness Rapidly progressive glomerulonephritis may cause anuria