PREGNANCY-BIRTH Messages for February, 2000: Re: ultrasound 4weeks+ ?

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Re: ultrasound 4weeks+ ?

From: anonymous@obgyn.net
Thu, 24 Feb 2000 07:34:20 -0600 (CST)

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In reply to: susie: "ultrasound 4weeks+ ?"

At Wed, 23 Feb 2000, susie wrote: >
>On 2/11, i had first sono and was told i was "4 weeks+", but no fetal
>heartbeat... Someone tell me just how far along that is, please. I do
>not want to ask my dr till next appt. and believe me , I should know
>anyway. Sono measures fetal maturity, right, so 4 weeks would be SINCE
>CONCEPTION, right? NO one knows when my last period (sometime in the
>last century) was, not even me... Just when should they pick up fetal
>heartbeat by sono? I thought this would be at around 28-30 days? Why
>then, no heartbeat at 4 weeks +??? Thanks.
>
>--
>WhatnotSue
>

The 4 weeks refers to a theoretical last menstrual period by convention. You don't see a fetal heart beat until 6 weeks (from LMP).

--
William D. McIntosh, MD, FACOG
Clarksville, TN

This is for educational purposes only, and is not intended to be replacement
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