PREGNANCY-BIRTH Messages for July, 1999: Re: measurements

Re: measurements

From: Terry (anonymous@obgyn.net)
Wed, 28 Jul 1999 12:19:34 -0500 (CDT)

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In reply to: anonymous@obgyn.net: "Re: measurements"

Dear Jo, below are the numbers you reported; however, I must say that I think there is some confusion... you need to go to your obstetrician or back to the sonographic laboratory for clarification. Your numbers do not make sense. At 16w 5d (16.7 weeks) the following are what the measurements should be approximately:

Bi-parietal diameter (BPD) = 36mm

Crown-rump length (CRL) = 110 mm

Femur length (FL) = 22 mm (a FL of 21 mm is OK)

Abdominal circumference (AC) = 111 mm

Head Circumference (HC) 128 mm

This does not mean that there is anything wrong with your pregnancy, but the numbers you have, for the most part, do not appear to be measurements or dates. They are probably some kind of Table listing that has nothing to do with your exam. But someone from the laboratory who performed the sonography is in the best position to explain what these numbers mean.

Good luck with your pregnancy.

Peace, Terry J. DuBose, M.S., RDMS University of Arkansas for Medical Sciences Little Rock, Arkansas USA

> -----Original Message-----
> From: josri@earthlink.net [SMTP:josri@earthlink.net]
> Sent: Wednesday, July 28, 1999 10:39 AM
> To: Multiple recipients of list ULTRASOUND
> Subject: measurements
>
>Hi
>
>I am 16w and 5d.
>Yesterday, I had an ultrasound.
>I want to know - how to interpret these measurements and what are the normal sizes for them?
>because at http://www.ob-ultrasound.net/ site it says, CRL should be 7.9 at 14 weeks. but my ultrasound printout shows 2 for FL it says, 1.5 at 14 weeks. but mine says 21
>
> Details as below:
> TBL 1
> Bi-parietal diameter (BPD) 1
> Crown-rump length (CRL) 2
> Femur length (FL) 21
> Abdominal circumference (AC) 4
> Head Circumference (HC) 5
>
> Thanks
> jo

--
Peace, Terry J. DuBose, M.S., RDMS
University of Arkansas for Medical Sciences
Little Rock, Arkansas USA

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