Harmony Test

Harmony Test

Baby's Health From 10 Weeks
NIPT - Non Invasive Pregnancy Test that screens for the following chromosomal abnormalities: Downs Syndrome, Edwards Syndrome, & Patau Syndrome.

Harmony Test

Harmony is a non-invasive pregnancy test (NIPT)

The Harmony test is a blood test that measures the baby’s DNA present in the mother’s blood to screen for chromosomal abnormalities. Please note that the Harmony test is a screening test rather than a diagnostic test and as such there is a chance of false positives and false negative results. 

The Harmony test screens for:

  • Down’s Syndrome – more than 99% detection rate
  • Edward’s Syndrome – more than 97% detection rate
  • Patau Syndrome – more than 93% detection rate

The Harmony test screens for the same abnormalities as the combined first trimester screening performed at most NHS trusts, however, the Harmony test is much more accurate. Harmony is the most proven NIPT brand with a better than 99% detection rate for Downs syndrome and low false positive rate of less than 1 in 1600.

Optional extras:

  • £84 – Dating ultrasound scan
  • £20 – Gender >99% accurate
  • £25 – Sex chromosome aneuploidy panel (X and Y)  or  – Monosomy X only (Turner’s syndrome) 

Safe, this test poses no risk for your baby.

Quick and simple blood test drawn from the mother’s arm. Can be performed as early as 10 weeks gestation.

Please note that to have this test you must have had a dating scan to confirm your pregnancy dates and if you are not having a scan with us you will need to bring the report from you dating scan with you when you come to have your Harmony test. 

Accurate, results are more accurate than tradition combined first trimester screening performed at most NHS trusts. Harmony is the most proven NIPT brand with a better than 99% detection rate for Downs syndrome and low false positive rate of less than 1 in 1600.

Results in 7-10 days. Please note results may take longer due to public holidays etc. 

The Harmony test not a suitable option in the following situations: 

  • In pregnancies with more than 2 babies
  • In pregnancies with a demised or vanishing twin
  • In woman under the age of 18
  • In pregnancies with maternal aneuploidy
  • In pregnancies with maternal transplant
  • In pregnancies with maternal malignancy
  • In cases of mosaicism, partial chromosomal aneuploidy or translocations

In twin pregnancies the results reflect the probability that the pregnancy involves at least one affected fetus.

If you receive a high-risk result, we will refer you to your local NHS for further testing and counselling.

Learn more on Harmony Test website at harmonytest.com.

The Harmony test is processed by The Doctors Lab (TDL) in London. 

The Harmony test is a simple blood test.

Our trained phlebotomist will take a blood sample from your arm.

This sample is then sent to the doctors lab in London to be processed.

The results will be emailed to you within 7-10 days. 

The basic Harmony test includes screening for Downs syndrome, Edwards syndrome and Patau syndrome, plus, you can also find out the gender of your baby for an extra £25.

The Harmony test can be done anytime after 10 weeks.

Your Questions Answered


Gift Cards

A perfect gift for loved ones who are expecting. We have a range of vouchers that can be used on our 2D scans and 4D scans as well as monetary value vouchers.

Buy Gift Cards View Gift Cards

Happy Baby Bumps

Babyvue is here to make sure you and baby are happy and healthy. To make sure you feel welcomed, reassured, and in safe hands throughout your pregnancy and fertility journey. Here’s what our customers have said about their experience at our Orpington baby scan clinic on Google Reviews.

Based on 250+ reviews
  • Baby Scan

    We had such a great experience at BabyVue in Orpington. As others have mentioned, Elena is lovely and really went above and beyond to make sure we got some great... Charlotte, Verified Review

    Early Pregnancy Scan

    Fantastic early scan, I was nervous even though it’s our second pregnancy and there was no messing about! Within about 20 seconds of having the ultrasound on... JKW, Verified Review
  • Ultrasound Scan

    The staff were all amazing, very helpful and reassuring. It was lovely to see our little baby moving around and the lady that did our scan was great in... Sam, Verified Review

    Gender Reveal

    We came back to BabyVue today for a second visit, first was at 11 weeks and this time for an early gender reveal. Another great experience. Very ... Lisa, Verified Review
  • 4D Baby Scan

    The most amazing experience, very calm and relaxing. We had the 4D scan and Janene was so patient when the baby was hiding away and finally got the most ... Vicky, Verified Review

    Gender Scan

    Brilliant experience. Very welcoming, kind, friendly receptionist. Extremely talented sonographer. Exceptional level of knowledge and experience... Roberta, Verified Review
  • Early Baby Scan

    Excellent experience both times I have visited BabyVue. My first impression of the clinic was the friendly and professional approach of the staff who greeted me ... Kathryn, Verified Review

    Private Ultrasound Scan

    I had a great experience at BabyVue. The staff were professional and friendly. The scans were very clear and the price was very reasonable. I would definitely... Danielle, Verified Review