Interpretation
Progesterone is the hormone secreted by the corpus luteum. It prepares the endometrium to receive the fertilized ovum and is necessary to maintain early pregnancy. Maximum progesterone occurs approximately 7 days post ovulation ie the routine measurement of this hormone can be used as a clinical indication of ovulatory status. Normally day 21
Reference Intervals
Luteal phase 15- 100 nmol/L
Follicular phase 1-4 nmol/L
Post menopausal <4 nmol/L
