PREGNANCY-BIRTH Messages for November, 2001: Re: want to know probable crl measurement

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Re: want to know probable crl measurement

From: Monique (anonymous@obgyn.net)
Fri, 30 Nov 2001 16:57:31 -0600 (CST)

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In reply to: j wang, M.D.: "Re: 10W4days pregnant, want to know probable crl measurement"

Since others might be interested, I found the following formula for determining CRL in relation to weeks pregnant: CRL (in cm) + 6.5 = Weeks Pregnant (since LMP) Seems accurate when I compared it to the charts (and you could use it backwards to estimate what CRL might be at any given time. I think this only applies to the first 18 weeks. Just FYI. Here's the source (includes chart): http://medicine.creighton.edu/radiology/Ultraoffetalbiomet.html#anchor267923

At Mon, 19 Nov 2001, j wang, M.D. wrote: >
>I don't have access to the tables. Margin of error is about 5 days at
>10 weeks.
>
>At Mon, 19 Nov 2001, carla wrote:
>>
>>What would be my crl measurement at 10W4days post lmp and what would be
>>the margin of error?
>
>--
>James Wang, M.D
>Assitant Clinical Prof.
>Tufts University School of Medicine
>
>statements are informational only and should not constitute a medical plan or treatment recommendation.
>

--
Thanks, Monique

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In reply to: j wang, M.D.: "Re: 10W4days pregnant, want to know probable crl measurement"

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