Patient's question:
What is the standard value of progesterone? What is the standard value of progesterone?Doctor's answer:
Hello; The placenta can utilize cholesterol from the mother's blood to synthesize progesterone, and it can start producing sufficient progesterone from day 36 of pregnancy. Non-pregnant plasma progesterone levels range from 0 to 15 ng/ml. By the fifth week of pregnancy, the concentration in serum is 24 ± 7.3 ng/ml, increasing to 125.2 ± 37 ng/ml by the 32nd week, reaching a peak of 150 ng/ml at 37 weeks, and slightly decreasing just before labor. After the placenta is delivered, it drops rapidly to 10-20 ng/ml. This proves that the high progesterone levels in maternal serum during the late stages of pregnancy come from placental secretion. In the early stages of pregnancy, progesterone is secreted at a rate of about 30-50 mg per day (compared to only 1-25 mg/day for non-pregnant women), mainly secreted by the corpus luteum. By the late stages of pregnancy, the secretion amount increases to 250-300 mg/day. Progesterone synthesized by the placenta...