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
Peak level of plasma progesterone in the luteal phase :
assistant
The correct answer is  Serum values of Progesterone : Follicular Phase: < 1 ng/ml Midluteal phase: 5-15 ng/ml (day 22nd of menstrual cycle) Reference: Clinical Endocrinologic Gynecology and Infeility, Eighth edition; Chapter 6