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Re: 21 day progesterone level...Dr. McIntosh...
From: anonymous (anonymous@obgyn.net)
Wed, 8 May 2002 11:34:58 -0500 (CDT)
Not a doctor, but everything I've read on this suggests what you're
saying here. If you take the test too late, then the progesterone would
have begun to fall, not rise.
At Wed, 8 May 2002, William McIntosh, MD wrote:
>
>At Wed, 8 May 2002, Joy wrote:
>>
>>Dr. McIntosh,
>>
>>Thanks for your reply. I am not able to see my doctor (OBGYN not RE,
>>yet) until the end of this month. I called for the results yesterday. I
>>was wondering, though, are you saying that because it was more than 7
>>days past ovulation that it should even be much higher than if I had a
>>regular 28 day cycle. I thought progesterone starts dropping right
>>before menses, so if my cycle was shorter then it might be lower. And
>>by lackadaisacle are you saying I have lazy progesterone? ;-) Thanks for
>>your clarification.
>>
>>Joy
>>
>>At Tue, 7 May 2002, William McIntosh, MD wrote:
>>>
>>>At Tue, 7 May 2002, Joy wrote:
>>>>
>>>>My level came back 12 of a 25 day cycle. What are your recommendations?
>>>>How much does length of cycle affect the level at 21 days?
>>>>Thanks,
>>>>Joy
>>>>
>Since your cycle was only 25 days, if you ovulated at all, it was likely
>on cycle day 11 or so. That would make the 21 day progesterone 10 days
>post-ovulation, not 7 days as the test is designed to reflect. since
>the progesterone would be expected to continue to rise, at least a
>little in the additional 3 days, the fact that yours was only 12 is not
>a great sign.
>
>--
>William D. McIntosh, MD, FACOG
>
>This is for educational purposes only, and is not a substitute
>for consultation and examination by a licensed medical professional.
>
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