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Obstetrics — Diagnostic Part 1 Ultrasound and Prenatal Diagnostic Procedures in Obstetrics

The majority of Obstetric units in this country offer their antenatal patients prenatal diagnosis for the commoner fetal abnormalities. These programmes are designed to detect structural and chromosomal abnormality of the fetus. Routine fetal anomaly scanning is used to detect the structural abnormalities with limited variation in how services are organised. In contrast, there is wide variation in methods used to identify chromosomal abnormality; this article will discuss the myriad of procedures available and attempt to place them in context.