This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Disorders of menstruation, Subject name: Gynaecology & Obstetrics
[{'content': 'Lady recovered from severe PPH, complains of failure of lactation and menstruation, which of the following can be seen \nSelect and explain. \nA. Increased Excretion of Na, B. Retention of Water, C. Increased Prolactin, D. Increased GnRH', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Sheehan Syndrome Rare consequence of severe postpaum haemorrhage which causes anterior pituatory necrosis and leads to pituitary failure The typical picture is failure of lactation, amenorrhoea, hypothyroidism and adrenocoical insufficiency Failure of lactation is the first sign Ref: Text book of Obstetrics; Sheila balakrishnan; 2 nd edition; Page no 403', 'role': 'assistant'}]