Screening in Pregnancy

Mr Colin Davis believes in a holistic approach to obstetric care in pregnancy. Very often it is important to perform an early pregnancy scan between 7 and 8 weeks gestation (from the last menstrual period) to determine that the pregnancy is progressing normally and has implanted in the lining of the womb (endometrium) and fetal heart beat is clearly seen. Following that an ultrasound scan is performed at 11 weeks gestation measuring the nuchal thickness to screen for genetic problems such as Down’s Syndrome. In combination with this ultrasound scan a new test called a Harmony test can measure the fetal cells in the maternal blood system to determine the genetic make-up of the baby to exclude major genetic problems. If there are concerns raised with these tests then a sampling of the placenta (CVS, chorionic villus sampling) can be undertaken to determine the exact genetic make-up of the pregnancy. In addition to these tests blood tests are performed to measure the mother’s blood group including full blood count, glucose levels and virology blood tests including Hepatitis B, Hepatitis C, HIV testing, Syphilis, rubella antibody measurement, toxoplasmosis. Following on from this Mr Davis would see his pregnant patients every four weeks till 28 weeks and then every two weeks through till 36 weeks gestation and then weekly until delivery of the baby, which Mr Davis would undertake at The Portland Hospital.

Additional tests would include a 20 week anatomy scan which would be performed at the Fetal Medicine Centre or the Portland Hospital' Additional tests would include a 20 week anatomy scan which would be performed at The Fetal Medicine Centre at The Portland Hospital and a growth scan at 34 weeks gestation, again performed at The Fetal Medicine Centre at The Portland Hospital.

Additional blood tests would be performed between 26 and 28 weeks gestation if appropriate later in pregnancy.

At 36 weeks gestation a vaginal swab test is performed to screen for group B strep as if positive this would then require intravenous antibiotics during labour.

During each antenatal consultation with Mr Davis he performs blood pressure analysis, urine analysis, examination which will allow for a check of the baby’s position and ultrasound scan to look at the baby’s position, size, amniotic fluid and fetal heart rate.

This comprehensive set of screening and assessment would be combined with understanding of the needs of individuals during pregnancy. In addition to Mr Davis’ appointments and screening he offers midwifery appointments with his colleague Arezou Namazy who is a senior experienced midwife who undertakes three consultations during pregnancy. She is also available for advice during pregnancy.

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