This test may not be applicable in multiple pregnancies including possible vanishing twin.
Also known as
Request a test
When requesting this test please use the referral form provided. Please also refer to any additional information provided for this test.
Download the referral form >
Must be received by the lab same day as taken, by 5.00pm
Great Ormond Street Hospital NE Thames Regional Genetics Service Laboratories
Great Ormond Street Hospital for Children
37 Queen Square