Topic of the lesson: Chromosomal disorders

The 'combined test' (nuchal translucency, beta-human chorionic gonadotrophin (β-HCG) and pregnancy-associated plasma protein-A) should be the screening test offered to women between 11 weeks 0 days and 13 weeks 6 days. For women who book later, triple or quadruple test) should be offered between 15 weeks 0 days and 20 weeks 0 days. ................
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