system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
How many weeks after delivery blood volume returns to pre-pregnant levels :
assistant
The correct answer is  Blood volume reaches prepregnant value by 1 week postpaum after delivery Cardiac Output reaches prepregnant value by 10days postpaum after delivery Reference: William's Textbook of Obstetrics 24th edition page no 690