Pregnancy comes with a lot of decisions, and prenatal screening is one of the more confusing ones. You may have heard of NIPT — non-invasive prenatal testing — but the clinical language can make it hard to know what you're actually being offered. Here's a plain-English guide.
What is NIPT?
NIPT is a blood test taken from the mother, usually from around 10 weeks of pregnancy. It analyses small fragments of the baby's DNA that naturally circulate in the mother's bloodstream. The test looks for changes in chromosomal numbers that are associated with certain conditions.
The most commonly screened conditions are:
- Down's syndrome (trisomy 21)
- Edwards' syndrome (trisomy 18)
- Patau's syndrome (trisomy 13)
- Sex chromosome variations (optional)
Some extended panels also screen for other chromosomal differences. At Northwest Health, we offer NIPT from £285 and can discuss which panel is right for your situation.
What NIPT is — and what it isn't
This is the most important thing to understand: NIPT is a screening test, not a diagnostic test. A high-chance result means there is an increased likelihood of the condition — it does not confirm a diagnosis.
If your result comes back as high chance, your clinician will discuss the option of a diagnostic test (such as amniocentesis or chorionic villus sampling), which can give a definitive answer. A low-chance result is very reassuring but cannot rule out every chromosomal difference entirely.
No screening test is 100% accurate, and that applies to NIPT too.
Why choose private NIPT?
NHS screening involves the combined first-trimester test, which uses an ultrasound measurement alongside blood markers. NIPT looks directly at foetal DNA and generally has a higher detection rate for the conditions it screens for, though both have a role.
Private NIPT gives you:
- Earlier access — testing from 10 weeks rather than waiting for a combined test appointment
- A faster result — typically within a few days
- Choice of panel — including sex chromosome analysis if you wish
- Time to consider your options — before routine NHS appointments
Do I need a referral?
No. You can book directly with us — no GP referral is needed. We'd always encourage you to let your midwife or GP know you're having NIPT, so all your antenatal care is joined up.
Genetic counselling and support
Because NIPT results can prompt significant decisions, we recommend that anyone receiving a high-chance result speaks with a genetic counsellor. We can facilitate access to genetic counselling as part of your care, so you have specialist support in interpreting your result and understanding the next steps.
A result — whether high or low chance — should always be discussed with a qualified clinician. It's not something to navigate on your own from a PDF report.
Speak to our team
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