Gynaecological and Obstetric Ultrasound and screening in Reading, Berkshire.
         For information and bookings call 01189 585 050

NIPT (Non-Invasive Prenatal Test)

This is a new, non-invasive, pre-natal screening test to detect chromosomal disorders and sex chromosome disorders as well as the baby’s gender if requested.

The Chromosome disorders detected are commonly known as Down’s syndrome (Trisomy 21), Edward’s syndrome (Trisomy 18) and Patau’s syndrome (Trisomy 13). The Sex Chromosome disorders that can be detected are commonly known as Turner syndrome (XO), Klinefelter syndrome (XXY), Triple-X (XXX) and Jacob’s syndrome (XYY)

The baby’s gender is determined by the presence, or lack of, a Y chromosome in the mothers blood sample.

We currently offer Non-Invasive Prenatal Tests from 3 providers: Vision, IONA and Harmony.

All of the tests we offer measure the fetal DNA present in a sample of the mothers blood and are available from 10 weeks gestation. All of the tests can be requested for single and twin pregnancies, including IVF pregnancies and pregnancies where a donor egg has been used.

The chart below shows the differences between the 3 tests we offer. If you have any other questions or would like to make an appointment, please contact us and we will be happy to help.




Price £449 £419 £399
Available from (gestation) 10 weeks 10 weeks 10 weeks
Method / Sequencing Targeted / Array Whole Genome Whole Genome
Available for twin pregnancies* Yes Yes Yes
Suitable for IVF patients Yes Yes Yes
T21 (Downs Syndrome) Yes Yes Yes
T18 (Edwards Syndrome) Yes Yes Yes
T13 (Patau’s Syndrome) Yes Yes Yes

Sex Aneuploidies

Turner Syndrome (monosomy X) Yes (optional) No Yes (optional)
Triple X (XXX) Yes (optional) No Yes (optional)
Klinefelter Syndrome (XXY) Yes (optional) No Yes (optional)
Jacob’s Syndrome (XYY) Yes (optional) No Yes (optional)
Gender indentification Yes (optional) Yes (optional) Yes (optional)**

Clinical Data

T21 detection rate >99% >99% 99.14%
T18 detection rate >97.4% >99% 98.31%
T13 detection rate >93.8% >99% 98.15%
False positive rate <0.1% <1% 0.20%
Fetal fraction detection rate 4% < 2% < 1.4%
Redraw / Failure Rate 4.60% 0.20% 0.10%
Approximate turnaround time*** 3-5 working days 3-5 working days 5-7 working days

* Not suitable for vanishing twins

** Where gender indentification is required sex aneploiody will also be reported

*** Time calculated from when sample is received in the labroratory. As labroratories do not express results over the weekend you may wish to consider coming in earlier in the week to avoid delays.



10% Discount on Stem Cell Storage

Book any scan with us and receive a 10% Discount Voucher towards having your baby's stem cells stored with Future Health Biobank. Visit their website to find out more...

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