This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Reproductive physiology and hormones in females, Subject name: Gynaecology & Obstetrics
[{'content': 'End product of prgesterone metabolism found in urine : \nSelect and explain. \nA. Pregnenolone, B. 17-OH Pregnenolone, C. Pregnanediol, D. Pregnanetriol', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Fate of progesterone : Within a few minutes after secretion almost all the progesterone is degraded to other steroids that have no progesteronic effect The major end product of progesterone degradation is pregnanediol. Approximately 10% is excreted in urine in this form. Ref: TEXTBOOK OF MEDICAL PHYSIOLOGY,GUYTON,Pg no:905,12th edition', 'role': 'assistant'}]