![]() There are toys provided in the waiting area. The ultrasound examination will be recorded on USB free of charge. We will also send a picture of your baby to your phone by mms. The blood flow in the umbilical cord, which gives an idea of placental function We check fetal movement, tone, breathing and liquor volume and give the fetus a biophysical score which is indicative of its well-being. ![]() There can be a 15% error on the weight estimate.įetal well-being. An estimated fetal weight is calculated from measuring the fetal head, abdomen and femur. On a third trimester ultrasound we always check:įetal anatomy, although late in pregnancy the views of certain parts of the fetus may be difficult.įetal size. More and more obstetricians refer women for two third trimester ultrasounds, mostly at 28 weeks and 36 weeks, because there is increasing evidence that this allows better detection of growth problems and ensures better outcomes for babies. ![]() If a fetal abnormality was noted on an earlier ultrasound If the clinician is uncertain about the position of the fetal head If the placenta was low-lying on the midtrimester ultrasound. If the mother has a medical condition that may influence fetal growth and well-being If clinically the fetus feels larger or smaller than expected for the gestation Some of the reasons why a third trimester ultrasound may be requested are listed below: Not all pregnant women need a third trimester ultrasound.
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