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Re: 21 day progesterone level...Dr. McIntosh...

From: William McIntosh, MD (anonymous@obgyn.net)
Wed, 8 May 2002 09:40:00 -0500 (CDT)

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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