This is a modern method of prenatal testing based on fetal DNA analysis from the venous blood of the mother to calculate the risk of developing chromosomal diseases in the fetus, such as: trisomy, abnormalities in the sex chromosomes.
Timeframe
NIPT accuracy
across Russia
All NIPT tests: free genetic counselling in the case of a high-risk result
The non-invasive prenatal test (NIPT) is a genetic screening method to determine the risk of having a baby with certain chromosomal abnormalities.
During pregnancy, fetal DNA circulates in a woman’s blood. Using maternal blood, starting from the 10th week of pregnancy, with the help of NIPT, fetal DNA can be extracted and analyzed for the presence of common chromosomal diseases, such as Down syndrome, Patau, Edwards and sex chromosome pathologies.
In all antenatal clinics, pregnant women undergo a combined biochemical screening at 10-13 weeks, which includes ultrasound and a biochemical blood test. But unlike NIPT, this study is not accurate enough, as the risk calculation is based on biochemical markers, ultrasound data, and maternal age. NIPT directly evaluates fetal DNA and is therefore highly accurate.
NIPT does not require intervention in the body, which makes the non-invasive test a safe, very convenient and simple method. Another advantage of the non-invasive test is its high sensitivity (about 99% for 21, 13, 18 pairs of chromosomes).
NIPT is performed from the 10th week of pregnancy and does not require special preparation for the delivery of biomaterial.
Non–invasive prenatal screening is recommended for:
Non-invasive prenatal screening usually examines those chromosomes that can cause pregnancies to progress beyond 16 to 18 weeks and result in a severely malformed baby.
These include:
The accuracy of NIPT is quite high, but differs in the analyzed chromosomes.
In addition to screening for the most common syndromes: Down, Edwards, Patau, NIPT also analyzes the X and Y chromosomes, allowing to determine the fetal pathologies associated with their malfunctions:
A positive predictive value (PPV) is the proportion of truly positive test results.
The non—invasive prenatal screening makes it possible to calculate the risks for the most common chromosomal pathologies.
Results of the non—invasive prenatal screening
The prenatal screening report contains a clear, easily interpreted result about the presence of a high or low risk of chromosomal pathology.
Low risk
Absence of chromosomal pathology with an accuracy of more than 99%.
High risk
There is an increased risk of a chromosomal abnormality. All high—risk results should be further investigated by invasive methods (chorion biopsy, amniocentesis).
No result
If the placental DNA level in the sample is below 3.5%, then a second sampling may be required, since a low fraction of fetal DNA is potentially capable of causing a false negative result.
The testing is not carried out in the following cases:
Select a laboratory that is convenient for you on the map during the order process.
Call a courier who will bring you a blood collection kit.
Give some blood into the tube that you received in the kit at any site where blood is taken at your location (laboratories, clinics, medical offices).
Blood sampling should be carried out in strict accordance with the instructions attached in the kit.
Be sure to indicate your full name and the date of blood sampling on the tube.
Store the tube in strict accordance with the instructions attached in the kit, before the courier arrives.
Call the number again and give the courier the kit and the tube with blood. The courier will take the tube to the laboratory.
Years of experience in genetics, laboratory diagnostics and bioinformatics
All data is strictly confidential and cannot be passed on to third parties
You can get an online consultation regarding the results of test
Extensive control at each stage of testing
Free delivery of biomaterial across Russia
Email info@f-genetics.com for information
A safe and accurate test makes sure that there are no chromosomal abnormalities in the baby and determines its gender already in the early stages of pregnancy
All NIPT tests: free genetic counselling in the case of a high-risk result