FOUR TEST

Quad Test (quadruple test)
The sensitivity of the test, with the addition of a triple measurement of inhibin-A, which increased further quadruple test is done. Associated Triple test reliability of four test 60% 80% 's arrives.
The triple test, such as Down syndrome, trisomy 18, is a screening test that determines the risk of neural tube baby defekti'nin.
Quadruple test substances studied beta-hCG, alpha-fetoprotein (AFP), Free Estriol (uE3), inhibin-A, respectively.

The aim of testing, interpretation and the logic is the same as the triple test. For more information triple test see the issue. Such as the triple test is done between 16-20 weeks.
According to a triple quadruple test, the test is higher than the detection rate of Down syndrome (80%), and the false positive rate, ie, rate of amniocentesis is less than the normal infants (4-5%).

More successful than the triple test, a screening test, quadruple test, although not as successful as combined test binary. For this reason, only the double combined test to yapılmasındansa just more than quadruple test is recommended. However, between the two combined test yaptıramamış 11-14 weeks, 16-20 weeks, then people missed out on a triple quad instead be tested will be much more useful to be tested.


You always need to pay attention to the point: Double, triple and quadruple test for sure that the baby will never show any abnormality or disability than normal, increased or not increased the risk of not only refers to the anomaly. Anomaly show us whether the method is exactly the amniocentesis or CVS or cordocentesis is. (Amniocentesis: mother's womb the baby's bladder water intake process) every time ultrasound abnormalities such as trisomy 21 or 18 unnoticeable. In addition, the normal emergence of these tests does not mean that the baby is definitely anomaly. There is a certain amount of these tests margins of error.