NIPT Test in Pregnancy: What It Is, Who Needs It, and What the Result Really Means
A "high risk" double marker report frightens many expecting parents — often unnecessarily. NIPT is a simple blood test from the mother that screens the baby's chromosomes far more accurately, with no risk to the pregnancy. Here is what it does, and what it cannot do.
Almost every week, an expecting couple walks into our centre holding a double marker report stamped "high risk", close to tears. In most such cases, the baby turns out to be perfectly fine — the older screening tests raise false alarms very often. It is usually at this moment that their doctor mentions a test called NIPT. If you have heard the name and wondered what it actually is, this guide is for you.
What is NIPT, in simple words?
NIPT (Non-Invasive Prenatal Testing) looks at tiny fragments of the baby's DNA that naturally circulate in the mother's blood. From one blood sample taken from the mother's arm — nothing touches the baby — the lab can screen for the most common chromosome conditions: Down syndrome (trisomy 21), Edwards syndrome (trisomy 18) and Patau syndrome (trisomy 13). It can be done from the 10th week of pregnancy onwards.
The word that matters most is screening. NIPT estimates the chance of these conditions with very high accuracy — studies report it picks up more than 99 out of 100 cases of Down syndrome, with far fewer false alarms than the double or triple marker tests. But it is not a diagnosis, and no honest lab will call it one.
Who is usually advised to take it?
Your doctor may suggest NIPT if the mother is 35 or older, if a double/triple marker or ultrasound finding has raised a question, if an earlier pregnancy had a chromosome condition, or simply if you want a more reliable screening before deciding anything further. Many couples today choose it directly instead of the older marker tests, because its false-alarm rate is much lower — which means fewer families spending two anxious weeks waiting, and fewer invasive procedures done "just to be sure".
How is it different from the double marker test?
Both are screening tests done on the mother's blood, but they read very different things. The double marker (done around weeks 11–13) measures two proteins and works out a statistical risk — it misses some cases and flags many healthy pregnancies as "high risk". NIPT reads the baby's actual DNA fragments, so its risk estimate is far sharper. Think of the double marker as a rough weather forecast and NIPT as a much clearer satellite picture. Neither replaces a diagnostic test when certainty is needed.
What do the results mean?
Most reports come back "low risk" — a strong reassurance that these three conditions are very unlikely. A "high risk" result does not mean the baby definitely has a condition; it means the chance is high enough that your doctor will advise a confirmatory diagnostic test, such as amniocentesis or CVS, before any conclusion is drawn. Occasionally the report says the test could not give a result (this happens when there is too little fetal DNA in the sample, sometimes in very early weeks or with higher maternal weight) — in that case a repeat sample is usually offered. Reports for NIPT take longer than routine tests, generally about a week to ten days.
One more thing, because families sometimes ask quietly: by law in India, the report does not reveal the baby's gender, and no test at our centre is ever used for that purpose.
If your doctor has advised NIPT
You do not need to travel to a big hospital for the sample. The test needs only the mother's blood, drawn like any routine test — at our Dr Lal PathLabs Patient Service Centre in Khargapur, Gomti Nagar, or at your home in Lucknow, free of charge. Bring your doctor's prescription and your ultrasound reports when you come; correct pregnancy dating matters for this test. If you are confused between the marker tests and NIPT, call or WhatsApp us on +91 9451155402 with your reports — we will explain which test your doctor's note is asking for, before you spend anything.