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Obstetric dating scan viability

The main purpose of an early obstetric/dating scan ultrasound’s is to determine the viability of your pregnancy, to confirm how many weeks pregnant you are and to estimate your due date.

This scan will also show if you are expecting a multiple pregnancy.

Ultrasound imaging in pregnancy is widely used to evaluate the baby.

It can determine if a baby is present, the position of the fetus and if there is a multiple pregnancy.

It can also help to diagnose abnormalities or problems, help determine the age of the pregnancy and subsequent due date as well as showing the position of the placenta in relation to the birth canal.

Please drink 1 litre of water and hold for one hour prior your appointment.You will receive paperwork by email or post prior to your appointment.To save you time, please complete all paperwork prior to appointment and present to reception upon arrival. The Morphology Scan (sometimes called an anomaly scan) is a routine diagnostic ultrasound examination which most Australian women have in the mid trimester of their pregnancy.Individual circumstances may dictate that more scans may be offered and a breakdown of what you could receive is detailed below.Early viability scan This usually takes place at 6 to 10 weeks of pregnancy.Ultrasound is used to take a measurement of a particular skin fold at the back of your baby’s neck.In babies with Downs syndrome, this fold of skin is thicker than in babies without the syndrome.At Scan Radiology, we recommend that this scan be performed at 20 weeks gestation. The main purpose of the scan is to evaluate the foetal anatomy of your baby.This includes examination of the brain, face, spine, extremities, heart, lungs, stomach, kidneys, bladder, cord insertion, arms, legs, placenta, cervix and volume of amniotic fluid.You’ll be asked to lie down on a table and required to expose your abdomen, down to the pelvic bone, but you can keep your underwear on.The sonographer will tuck a piece of tissue into your underwear to protect your clothes, then drop some gel onto your abdomen.


  1. Feb 2, 2012. Early Pregnancy Viability Scan or "Dating Scan" at The Birth Company in Harley Street, London. A Viability Scan is available for anyone who.

  2. Using both clinical information from the date of your last period or BhCG hormone levels discovered via a blood test and information obtained with the.

  3. The main purpose of an early obstetric/dating scan ultrasound's is to determine the viability of your pregnancy, to confirm how many weeks pregnant you are and.

  4. A fetus can usually be seen from 6 weeks after the last menstrual period, although the pregnancy is best dated from 9 weeks. Getting the dates correct is crucial.

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