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Re: Serum Progesterone TestFrom: anonymous@obgyn.netWed, 16 Feb 2000 15:47:58 -0600 (CST)
At Wed, 16 Feb 2000, Cherine wrote: > >Hello, > >I am not pregnant, but trying to be. My husband and I are going through >infertility treatment. I go in on Friday for a serum progesterone blood >test (will be 7 days past ovulation then). I had read an article (and >can't seem to find it online now) about the fact that progesterone can >really vary at different times of the day. The article even stated that >it varies before and after eating and suggested to fast before the test. >Has anyone heard anything about this - can you point me in a direction >to research this a little? > >Also, could someone explain why this test is given to show if a woman is >ovulating? I understand that progesterone levels rise after ovulation >but couldn't it be possible for a woman to ovulate but have low >progesterone? I'm curious because this office is going to put me on >Clomid if my progesterone level isn't high enough. I have been charting >for 6 months & have used ovulation predictor kits, all which point to >the fact that I am ovulating. I'm not really crazy about the idea of >going on Clomid just yet. > >Any help is appreciated. > >Thanks, > >-- >Cherine > After ovulation, the site of the ovulation on the ovary begins to produce hormones, most critically progesterone. If this area, known as the corpus luteum, does not form (in the event that ovulation does not occur), or does not persist long enough (inadequate luteal phase), conception is difficult if not impossible. A serum progesterone greater than 10 on Cycle Day 21 is reassuring that neither of these problems is present.
-- William D. McIntosh, MD, FACOG Clarksville, TN
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