Differences
Trisomies
Down syndrome (trisomy 21)
Edwards syndrome (trisomy 18)
Patau syndrome (trisomy 13)
Sex
Foetal sex determination
Sex chromosome abnormalities
Turner syndrome (45,X)
Klinefelter syndrome (47,XXY)
XYY syndrome (47,XYY)
XXX syndrome (47,XXX)
Microdeletion syndromes
DiGeorge syndrome (22q11)
Prader-Willi syndrome and Angelman syndrome (15q11)
Cri-du-chat syndrome (5p15)
1p36 deletion syndrome
Wolf-Hirschhorn syndrome (4p16.3)
✓
✓
✓
Probable
X
X
X
X
X
X
X
X
X
✓
✓
✓
Chromosome-based
✓
✓
✓
✓
X
X
X
X
X
✓
✓
✓
Chromosome-based
✓
✓
✓
✓
✓
✓
✓
✓
✓
Trisomy and its risks
Random cell division abnormalities may occur during egg maturation and in the early phases of egg fertilisation. If these processes lead ot an extra copy of one of the chromosomes, which means a particular chromosome occurs in three rather than two instances, the condition is called trisomy.
TRISOMY test
There is a certain amount of foetal DNA in maternal blood already in the early stages of pregnancy. Using a special screening laboratory test, it is possible to isolate this foetal DNA and analyse it to determine the risk of foetal trisomy (three identical chromosomes).
Consult your doctor
TRISOMY test (or TRISOMY test +) is designed to exclude the presence of trisomy 21 (Down syndrome), trisomy 18 (Edwards syndrome), and trisomy 13 (Patau syndrome) with a high degree of accuracy. If the mother-to-be wishes to know, the test can also determine the sex of her unborn baby.
Company TRISOMY test Ltd. meets the requirements of ISO 9001:2016.
Laboratories of TRISOMY test Ltd. are accredited according to ISO 15189:2012
and in analyses of samples unique bioinformatical tool certificated according to ISO 13485:2016 is being used.
Parents’ and doctors’ views
Basic biochemical screening indicated some of my parameters were, due to my age, slightly higher, which made me feel uncertain and worried. That is why my husband and I decided to give TRISOMY test a try. One simple blood test and the results were in within a few days. The relief we felt when the doctor confirmed we were facing no risk was indescribable! And as a bonus, we learnt it's a baby girl. We’ve been using her first name since then, which brings the three of us even closer to one another.