Private Non-Invasive Prenatal Test NIPT
From 10 - 40 Weeks | Pregnancy Scan Included
The Non-Invasive Prenatal Test (Harmony Test) indicates the likelihood of three chromosomal conditions: Trisomy 21 (Down syndrome), Trisomy 18 (Edwards Syndrome), and Trisomy 13 (Patau’s Syndrome). The test is taken after the 10-week gestational mark and involves a safe ultrasound and blood test.
Growing your family is one of the greatest joys in life, and safeguarding your baby’s health is paramount. Our Specialists are committed to making your pregnancy journey as comfortable and stress-free as possible.
All Fees Inclusive
Registered & Regulated
Our team are fully registered and regulated for practice in the United Kingdom. Our patients should expect nothing less.
Non-Invasive Prenatal Test NIPT
Learn more about your baby’s health with a non-invasive prenatal test
The Harmony Test is a safe and accurate way to learn more about your baby’s health during early pregnancy.
All Fees Inclusive
One-to-One Specialist Appointment
Feel confident in the care you receive. Our specialists can interpret your scan and provide comprehensive advice if necessary.
No Referral Required
You do not require a referral before booking an appointment with our clinic — giving you back complete control of your health.
As soon as your Harmony Test Results become available, we will get in touch to let you know about the findings, and this can generally take 7 – 10 working days.
Full Digital Report
Following your appointment, a complete digital report of your Ultrasound Scan will be emailed to you directly and securely. The Harmony Test Results will follow once they are available.
High-Res Digital Images
In addition to the report, images of your scan will be sent for you to share with a healthcare specialist of your choice.
Frequently Asked Questions
What is the Non-Invasive Prenatal Test NIPT?
A Non-Invasive Prenatal Test – NIPT (Harmony Test) is a non-invasive prenatal test that looks for several chromosomal conditions in pregnancies as early as ten weeks gestation.
When you are pregnant, your blood contains small amounts of your baby’s DNA. During the Harmony Test, you will undertake a blood test, allowing medical specialists to learn more about your baby and provide accurate likelihoods of common chromosome conditions, including trisomy 21 (Down syndrome), trisomy 18, and trisomy 13.
Sex chromosome anomalies are also assessed including Turner and Klinefelter syndrome. The test is highly accurate and is significantly better than traditional screening tools. (Please ask for further information about this option at your appointment.)
We understand the health of your baby is of paramount importance. A Harmony Test can give you peace of mind during early pregnancy.
What do Non-Invasive Prenatal Test results show?
an Non-Invasive Prenatal Test NIPT results show whether there is a high or low chance your baby has trisomy 21, trisomy 18, or trisomy 13.
- Test results that indicate a high likelihood do not mean that your baby definitely has one of the conditions listed above. With 100% certainty, you can undergo Chorionic Villus Sampling (CVS), an Amniocentesis or Amnio tests.
- Test results that indicate a less than 1 in 10,000 chance your baby has trisomy 21, trisomy 18, or trisomy 13 mean the likelihood is very low.
Your pregnancy journey is unique, and we believe in patient-centred care that ensures you maintain control of your health. The Harmony Test can also be used to uncover additional information about your baby, including:
- Sex. You can find out whether your baby is male or female – the Harmony Test can also determine the sex of twins.
- Sex Chromosome Aneuploidy. This condition occurs when a baby has differences in the number of X and Y chromosomes. This can result in learning and behavioural difficulties and other health concerns in some cases.
- Monosomy X, also known as Turner Syndrome. This condition occurs in females missing an X chromosome. They may have heart, learning, or endocrine problems.
If you would like to learn more about the above conditions and whether you are at a higher risk, please speak to your trusted doctor.
How accurate is are Prenatal Test NIPT results?
Non-Invasive Prenatal Test NIPT are extremely accurate. Results identify 99 per cent of pregnancies with trisomy 21. In contrast, other blood tests miss 1 in 5 pregnancies with trisomy 21.
What’s more, the Harmony Test has a low false-positive rate of 0.1 per cent. A false positive occurs when results flag an issue, yet the baby is healthy.
What should I do if I receive an inconclusive harmony test result?
It’s understandable to feel concerned or uncertain after receiving an inconclusive harmony test result.
We will likely recommend repeat testing to get a clearer picture of your baby’s health. This may include additional non-invasive tests.
Is an inconclusive harmony test result common?
Inconclusive harmony test results are relatively rare, occurring in less than 1% of cases.
It’s important to keep in mind that an inconclusive result does not necessarily mean that there is a problem with your pregnancy.
What does it mean to receive an inconclusive harmony test result?
An inconclusive harmony test result means that there was not enough information obtained from the test to determine whether your baby is at risk for certain chromosomal abnormalities.
This can happen for various reasons, such as not having enough foetal DNA in the sample or technical issues with the testing process.
How will an inconclusive harmony test result affect my pregnancy?
An inconclusive harmony test result does not necessarily mean that there is a problem with your pregnancy.
It simply means that more information is needed to determine the likelihood of certain chromosomal abnormalities.
We are happy to provide guidance and support throughout your pregnancy and help you make informed decisions about necessary testing or treatment.
Do I need to have any other tests besides Prenatal Test?
The health of you and your baby are your priorities. While the Harmony Test provides accurate information about some chromosome conditions, it cannot detect others.
For example, this non-invasive prenatal test cannot provide information on some rare chromosomal abnormalities. If your 11-13-week scan shows a high nuchal translucency (3.5 mm or more) or significant defects (such as exomphalos, holoprosencephaly, heart abnormalities, or megacysis), the likelihood of rare chromosomal conditions may be elevated.
If this is your experience, you may wish to undergo invasive testing using chorionic villus sampling (CVS) or amniocentesis (amnio). However, these procedures carry a risk of miscarriage. 0.5% chance with single and 1% with twins.
In addition, the Harmony Test doesn’t offer information on physical defects. This includes heart and brain conditions and spina bifida. It doesn’t provide details on foetal growth, either.
Therefore, we highly advise undergoing safe and non-invasive ultrasound scans at the 11-13- and 20-22-week milestones to check foetal anatomy and well-being. An additional growth scan at 30-32 weeks can examine foetal growth.
If you have any questions about your baby’s health and the tests you might need, please do not hesitate to reach out. We’d be more than happy to discuss your concerns.
Who should have a Non-Invasive Prenatal Test?
Generally, the Harmony Test is recommended for pregnancies classified as higher risk. Chromosomal conditions are not usually hereditary and can occur in any pregnancy. And while the likelihood of having a baby with trisomy 21 (Down syndrome) increases as you age, most babies with trisomy 21 are born to parents under 35.
If you would like to learn more about your risk level and whether this non-invasive prenatal test is right for you, get in touch or speak with your trusted healthcare professional.
How is the Non-Invasive Prenatal Test performed?
The Harmony Test is performed in two parts, both non-invasive.
First, you will have an ultrasound scan. Ultrasounds allow your specialist to see inside of your body, so they can confirm you are at the ten-plus-week gestational mark. Ultrasounds don’t use radiation and are safe for you and your baby.
Second, you will have a blood test. Your blood will be sent to a laboratory and analysed by specialists. Your results will be sent to your healthcare provider in three to five business days.
What if the results come back inconclusive?
On rare occasions, about 5% of the time, can happen and you shouldn’t worry. Should the results come back inconclusive, our specialist will get in touch with you and provide you with advice on the next steps.
What is an Early Pregnancy Ultrasound Scan?
An early pregnancy scan is usually performed shortly after finding out you are pregnant.
This is usually 6 to 8 weeks after conception and the purpose of the scan is to confirm the pregnancy, assess early viability and to provide an accurate date of the pregnancy (the scan is often referred to as viability or dating scan).
If you experience any pain or bleeding in your early pregnancy, we advise having an ultrasound to check all is well. If you have experienced a miscarriage previously, we also advise having an early pregnancy ultrasound to assess the pregnancy.
We aim to provide you with the confidence and reassurance you deserve in the hands of our experienced team.
How is it performed?
A sample of the mother’s blood is taken (usually from the arm). This is then sent to specialist’s labs with a result ready in 7 – 10 working days.
For your Early Pregnancy Ultrasound we advise drinking a few glasses of water an hour before your ultrasound as a full bladder will improve the visibility of your pregnancy on our external ultrasound scan.
What should I do with the results of my Harmony Test?
Your doctor or midwife will want to know the results of the Harmony Test and are likely to ask you for a copy.
If you have any concerns about your test results, we can arrange for you to discuss them with an on-site Consultant Obstetrician.
What happens after the exam?
There is no particular type of care required after a Blood Test & Early Pregnancy Ultrasound. You may resume your regular diet and daily activities unless your doctor advises you differently.
There are no confirmed adverse biological effects on patients or instrument operators caused by exposures to ultrasound at the intensity levels used in diagnostic ultrasound.
But depending on your particular results, the doctor may give you additional or alternative instructions after the procedure.
How does Harley Street Ultrasound work with the National Health Service?
Many of our patients are concerned that if they come to us for an Ultrasound or Blood Test, they won’t be able to go back to public health. That simply is not the case.
Our goal is to give you answers as quickly as possible and get you on the right treatment path fast – no strings attached.
When you come to us, you will be seen by a qualified specialist who can determine if your situation is serious or not that same day.
We don’t want you to wait weeks on end for an appointment because every minute counts when it comes to something as important as your health.
If your situation is serious, our specialist will write to your doctor on the NHS advising them that you need an urgent appointment.
Team of Specialists
The team at Harley Street Ultrasound Group is made up of specialist consultants you can rely upon. They are among the best in the industry.
This is backed up with a full range of qualifications and accreditations. All of our specialists are fully registered with all applicable medical regulatory bodies.
At your fingertips
We provide scan images directly to your smartphone, often on the same day following your appointment. Gain the peace of mind and insight you need, without delay.
The Harley Street Experience
We aim to provide the very best experience possible to all of our patients and visitors, and this covers every aspect of our services — from our specialists to our technology and of course to our clinic itself.
When you visit us, you will find our clinic to be a clean, comfortable and reassuring environment. We also maintain a high standard of Covid-19 best practices, ensuring maximum safety at all times.
What Our Patients Say About Their Experience
We are committed to providing a high standard of care to our patients. Take a look at some of the incredible responses we have received.
The doctor was super patient, super kind and the best experience ever. He was listening to me rather than hearing me. He explained everything so carefully and patiently, ensuring he answered and eased all my worries. You can always feel the service provided has given you your money’s worth.
20 Mar 2023
I loved the atmosphere. The staff was prepared and very friendly. I was nervous, but I relaxed myself after one minute.
18 Mar 2023
Very efficient service and knowledgeable staff. I was put at ease through the whole procedure.
18 Mar 2023
Excellent service from start to finish. From taking my calls, booking, greeting on arrival, speed of service, friendly staff, very experienced consultant. It was a brilliant experience!
16 Mar 2023
The doctor was so professional and thorough, putting me at ease immediately. I could see that he is a very compassionate person. I haven’t seen a doctor like him in years. Thank you.
13 Mar 2023
I was taken into the Ultrasound room and the doctor did the check-up and found that everything was normal. He showed me both sides of my neck, the images of my salivary glands, lymph nodes on both sides and thyroid etc., I was very happy with the way Dr. explained everything. Soon after I received the images and the report by email. Thanks for a wonderful experience and great service by the attending Doctor and the staff
11 Mar 2023
Consistently excellent. Highly capable, truly caring professionals. Impossible to fault. Everyone with whom I have been in contact was extremely professional and efficient, warm and friendly. Please don’t change, what you have is very special.
11 Mar 2023
Had a really great experience from start to finish, had the opportunity to ask questions and put any worries to rest as well which was really important to me as a first-time mother!
10 Mar 2023
Wonderful quick appointment. The doctor and Nurse were so polite and kind. Results straight away and brilliant advice is given for the future. Would definitely go back if needed.
9 Mar 2023
Extremely professional experience. My treatment and care was excellent. I thoroughly recommend using this company to give you the best possible experience in assessing your cares and worries.
9 Mar 2023
I was happy with the whole experience; it was straightforward, direct and professional in every way and efficiently carried out. It is what I wanted and expected.
7 Mar 2023
Booking, timing, reception, and explanation the procedure of ultrasound by the nurse and doctor was good.
7 Mar 2023
Monika was excellent and fully supportive. Without her, I would not be able to get there. And the team in the clinic was most helpful, cheerful and very professional. Dr Trevor Gaunt has explained everything in detail. I highly recommend your services.
2 Mar 2023
Very happy with the care that I received at the clinic. I saw the radiographer for an ultrasound scan and the gynaecologist as an emergency today, both professional and kind. All my questions were answered. I feel reassured. I would be very happy to recommend someone to the clinic and will come back if I need to in the future.
2 Mar 2023
Great experience. Very kind clinicians. Everyone was very nice and made me feel at ease. Excellent radiologist.
2 Mar 2023
We were extremely pleased with the easy online booking, very pleasant staff and professional manner, including sharing patient info with the patient step by step.
22 Feb 2023
Very welcoming, relaxed, professional and efficient. Excellent, professional, friendly service. Well worth paying for. Results were sent very quickly. The recommendations were very clear.
21 Feb 2023
Dr Shah, Consultant Radiologist and all the staff I came in contact with were extremely polite and communicated effectively. Kept me informed and supported me.
19 Feb 2023
Absolutely fantastic specialists. I booked an abdominal & pelvic scan, as I had worries about my health and wanted to find out the reasons why I am not well. Very nice and calm atmosphere in the clinic. Everyone is brilliant. Thank you for your care about me.
18 Feb 2023
Very professional service by assertive doctors. The advice provided was balanced, and I felt comfortable with the suggested next steps.
17 Feb 2023
Lovely service. Quick, efficient and very clear. The doctor was very calming and reassuring. Wonderful service.
16 Feb 2023
Was made to feel comfortable by explaining how the process would go and to feel free to ask questions at any time. Straight forward, you get what you paid for in the convenience of your own time.
15 Feb 2023
Easy to book an appointment and excellent care. The doctors and chaperone were friendly and professional. They put me at ease and provided excellent service.
11 Feb 2023
Good service. Doctor was first-class, efficient and tentative.
10 Feb 2023
Lovely staff, environment and feel safe and cared for. Would definitely recommend. Have already been 3 times myself.
9 Feb 2023
I found Chloe and the team friendly, informative, thorough, non-judgmental and reassuring. Made me feel welcome and answered all my questions. Would highly recommend.
6 Feb 2023
Highly satisfied with the service provided, very professional staff, prompt results, and I had all my questions answered. I highly recommend it. Very welcoming, professional and with an obvious level of expertise.
4 Feb 2023
Staff are all so friendly and caring. I felt at ease throughout my appointment for a complete breast assessment. Results were straight away and discussed through with me immediately with my consultant. The results were emailed to me within an hour of my appointment ending. All round fantastic service.
3 Feb 2023
The details of what my appointment involved were clear, the online booking system was easy to use and convenient. I arrived early, and the friendly staff squeezed me into a schedule gap. In my appointment, I did not feel as though I had been squeezed into any schedule gap: all staff, including the consultant, made me feel comfortable and as though they had time for questions, time for listening and were happy to help. I received my report no longer than two hours after I left the clinic. Highly recommend.
3 Feb 2023
Dr Kate Hawtin was excellent both in her manner and professionalism. She explained everything comprehensively and her report was transparent and clear. Also, Monika, who is the receptionist and escorts clients to the examination room, was very helpful and courteous.
2 Feb 2023
The whole experience was super positive. I had an early pregnancy scan and felt in very good hands. Highly recommend!!!
1 Feb 2023
Amazing experience a lively team who really went the extra mile and helped me feel more at ease on what was happening with me. Great services would definetly recommend.
27 Jan 2023
Excellent and professional service from beginning to end. Special mention to the helpful and welcoming nurse. Thank you to Dr Tahir Hussain for his clear explanation of the scan. I look forward to my next check-up with him at Harley Street Ultrasound.
26 Jan 2023
Here to Help
We provide insight on a range of topics, including the latest Covid-19 news affecting our practice.
Breast Lumps: Causes, Symptoms & Ultrasound’s Diagnostic Role
Breast lumps are not always cancerous, and many are harmless. However, if you have found a lump in your breast, it’s best to have it
Growth Scan: What should you expect?
Are you excited to catch a glimpse of your little one during the third trimester? A growth scan, also known as a baby wellbeing or
Breast Ultrasound Procedure: What should you expect?
A breast ultrasound is a non-invasive, painless, and safe way to examine the internal structure of the breast. This procedure is a valuable tool in