Private NIPT Harmony Test + Scan London

The NIPT Harmony Test + Scan combines a pregnancy ultrasound with a maternal blood test that screens for the likelihood of common chromosomal conditions, including trisomy 21, trisomy 18 and trisomy 13. The ultrasound checks fetal viability, gestational age and whether a single or multiple pregnancy is visible.

The NIPT Harmony Test + Scan is £549 at London Private Ultrasound. The package includes the ultrasound scan, blood test, sonographer-led explanation and scan report.

The service is available from 10 weeks + 4 days of pregnancy. If you are unsure about your dates, the ultrasound element helps confirm gestational age before the blood sample is taken.

The test screens for the likelihood of the three common trisomies: Down syndrome (trisomy 21), Edwards syndrome (trisomy 18) and Patau syndrome (trisomy 13). It is a screening test, not a diagnostic test.

Optional fetal sex determination is available if requested. Please tell the team before the blood sample is sent if you would like this included or excluded.

The ultrasound checks pregnancy viability, gestational age, heartbeat when expected and visible, and whether a single or multiple pregnancy is seen. It also provides representative images and a scan report.

No routine GP or midwife referral is required for private booking. If you have NHS maternity notes, previous scan reports, IVF dates or screening results, please bring them for clinical context.

After the ultrasound, a blood sample is taken from your arm. The sample is used to analyse fetal cell-free DNA fragments in the maternal bloodstream.

The ultrasound element is usually completed within around 15 to 20 minutes, depending on the position of the baby and image quality. Please allow extra time for consent, discussion and the blood sample.

The ultrasound findings are explained at the appointment and a digital scan report is issued. Blood-test turnaround can vary by laboratory processing and service pathway, so the current expected timeframe should be confirmed at booking.

No. NIPT is a highly informative screening test. A high-risk result usually requires discussion with your maternity team or specialist and may require diagnostic testing such as CVS or amniocentesis before any major decisions are made.

Diagnostic ultrasound uses sound waves rather than ionising radiation. The scan is performed following ultrasound safety principles, keeping exposure as low as reasonably achievable while obtaining the necessary clinical information.

The blood test is a maternal blood sample taken from the arm. It is non-invasive to the pregnancy and does not involve taking a sample from the placenta or amniotic fluid.

A full bladder is usually helpful for transabdominal pregnancy ultrasound at this stage. The source page advises drinking around 0.75 to 1 litre of water about one hour before the appointment, unless you have been advised otherwise.

The NIPT ultrasound is usually performed transabdominally over the tummy. If views are limited or dates are uncertain, the sonographer will explain any appropriate alternatives and obtain consent before any additional approach.

No. This private test does not replace NHS antenatal care, routine appointments, anomaly scanning or midwife-led care. You should continue your NHS or private maternity pathway as planned.

If the blood-test result is high risk, you should discuss it with your maternity team, GP, obstetrician or fetal medicine specialist. The clinic can provide your report and recommend appropriate onward referral.

Many patients choose NIPT after receiving a high-risk or uncertain combined screening result, but you should discuss the most appropriate next step with your maternity care provider because diagnostic testing may be recommended in some situations.

A partner or support person can usually attend the appointment. Please contact the clinic in advance if you have specific privacy, chaperone, accessibility or support requirements.

Seek urgent NHS maternity, Early Pregnancy Unit, A&E or emergency care if you have heavy bleeding, severe abdominal or pelvic pain, shoulder-tip pain, fainting, collapse, fever, severe dizziness or feel acutely unwell.