Down Syndrome Screening

Service	Period of Pregnancy	Description	Average duration of Scan	Throughput time for Patient (time between entering and exiting the clinic)
B. Down Syndrome Screening
1. First trimester combined screening test	11weeks – 13 weeks 6 days [CRL 45 – 84 mm]	Assesses the chance of baby having Down syndrome in your particular case; Offered to all eligible pregnancies	In addition to the first trimester screening scan, blood will be drawn	Report from Lab indicating the chance of Down Syndrome takes about 7 working days
2. Quadruple screening test	16 – 21 weeks [BPD 32 – 54mm]	Offered to women who missed the FTS	Before drawing blood, fetal head size will be noted. 5-10 min	Lab will report in about 7 working days
3. Non-invasive screening by fetal DNA	10 weeks – 18 weeks	A highly sensitive screenig test using baby’s DNA that is found in mother’s blood. Pretest counseling is mandatory	Blood draw. A detailed EPAS or Target scan as per gestation is mandatory	14 working days