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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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What Does The Following Pregnancy Scan Suggest?

hello doctor, i am 20 weeks pregnant and my scan report shows the following
A single, live, intra uterine fetus is seen exhibiting active movements
placenta; posterior maturity grade. 1
amniotic fluid: adequate
heart;150 bpm
Bpd: 42mm
AC: 130 mm
FL :28 mm
estimated gestational age: 18 w 6 days
estimated fetal weight: 0256 gms
is there any problems in this report and what about the growth ? it is 1 week lowe than the actual

Tue, 23 Feb 2016
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OBGYN 's  Response
Hi there,
Welcome to HCM,

This is an absolutely normal findings of ultrasound scan at 20 weeks.
The measurements give an estimate of weeks but, a variability from the actually calculated date can be present, as ultrasound only gives a rough estimate.

So in effect the ultrasound findings can be plus or minus 1 week in first trimester; 2 weeks in second trimester; and more than two weeks in third.

This variability is decreased with newer machines but cant be totally removed.

So I would say that this report is absolutely reassuring and you should not worry at all.

A good fetal heart rate and a placenta which is only grade 1 maturity indicates that everything is as it should be at this stage.

Do not worry.
Hope this helps.
Regards.
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What Does The Following Pregnancy Scan Suggest?

Hi there, Welcome to HCM, This is an absolutely normal findings of ultrasound scan at 20 weeks. The measurements give an estimate of weeks but, a variability from the actually calculated date can be present, as ultrasound only gives a rough estimate. So in effect the ultrasound findings can be plus or minus 1 week in first trimester; 2 weeks in second trimester; and more than two weeks in third. This variability is decreased with newer machines but cant be totally removed. So I would say that this report is absolutely reassuring and you should not worry at all. A good fetal heart rate and a placenta which is only grade 1 maturity indicates that everything is as it should be at this stage. Do not worry. Hope this helps. Regards.