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ID:994 Downs Syndrome Screen
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Description Combined test performed between 11 weeks 2 days to 14 weeks 1 day of gestation. The laboratory measures free beta human chorionic gonadotrophin (free beta HCG) and pregnancy associated plasma protein-A (PAPP-A). Quadruple test performed between 14 weeks 2 days to 20 weeks 0 days. The laboratory measures alpha fetoprotein (AFP), free beta human chorionic gonadotrophin (free beta HCG), unconjugated oestriol (uE3) and Inhibin-A
Indication Risk assessment of foetal trisomy 21
Additional Info
Concurrent Testsna
Dietary Requirementsna

Interpretation The results of the biochemistry tests will be combined with scan and demographic data, in a software program to calculate the risk of the pregnancy being affected by Down’s syndrome

Ref. Range (Male)
Ref. Range (Female)
Ref. Range (Paed)
Ref. Range Notes
Units - Not Defined -

Other Help:National Laboratory Medicine Handbook

IP Acute TAT- Not Defined -
IP Routine TAT- Not Defined -
GP Acute TAT- Not Defined -
GP Routine TAT- Not Defined -
Turnround CommentNA
Originally edited by : DH. Last edited on 31/05/2018 09:34:22. Published By RB on 31/05/2017 09:34:22.