Are dating scans in pregnancy accurate

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Fetal Echocardiography – Uses ultrasound waves to assess the baby’s heart anatomy and function.

This is used to help assess suspected congenital heart defects.

This is available on the NHS, although not all hospitals routinely offer the more accurate combined test that we use which includes a blood test to increase accuracy to 95% (when performed by a suitably accredited FMF operator) The only way to achieve a 100% accurate diagnosis for Down Syndome is to have diagnostic genetic testing performed via a procedure such as a CVS or amniocentesis. However if you are looking for the most accurate Down Syndrome test but want to avoid the risks associated with diagnostic testing? These dates are calculated from the first day of your last menstrual period.A medical report will be available immediately after your appointment.The long-term effects of repeated ultrasound exposures on the fetus are not fully known.It is recommended that ultrasound only be used if medically indicated. The heartbeat may not be detected for reasons that include: tipped uterus, larger abdomen, or inaccurate dating with last menstrual period.

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