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: Gynaecology & Obstetrics
[{'content': 'Rate of involution of uterus is: March 2011 \nSelect and explain. \nA. 0.75 cm per day, B. 1 cm per day, C. 1.25 cm per day, D. 1.5 cm per day', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. C: 1.25 cm per day During the first 24 hours after delivery, the level of the uterus remains constant; thereafter there is a steady decrease in height by 1.25 cm (half inch) in 24 hours, so that by the end of 2^d week, the uterus becomes a pelvic organ Remember: Puerperium period: 6 weeks after delivery Involution of uterus is complete by: 6 weeks Uterus becomes a pelvic organ: 2 weeks after the delivery MC cause of puerperal infection: Streptococcus MC route of puerperal infection: Direct spread', 'role': 'assistant'}]