Gynecology and obstetrics specialist Dr. Burak Tanır gave detailed information about the screening tests applied to see the possibility of chromosomal anomaly of the baby in the mother’s womb. Dr. Dr. Tanir “These are screening tests. It is not a diagnostic test. If we see a risk in this, we may need more sophisticated diagnostic testing. Some of the main ones we’ve done are the double test we’ve done between the 11th and 14th weeks; It is the quadruple test that we do between the 16th and 18th week and the Fetal DNA test, which has been used more and more recently.”
“The double test looks at the nasal bone and neck thickness of the baby”
Dr. Dr. It was examined in the form of a combination of Tanr ultrasound and blood drawn from the mother; Noting that two different parameters are checked in the blood, Dr Tanir said: “The nasal bone and thickness of the baby’s neck are also checked on ultrasound. It gives a risk value along with researching it. We make comments based on this value of risk,” he said.
Dr. Dr. Tanir said, “This time 4 parameters are checked in the womb. Again, we do it under the guidance of ultrasound and their combined evaluation gives us a risk value. If any of these are found, we will refer you for further diagnostic testing. The accuracy of this double and quad test is about 85 percent.”
“The accuracy rate in fetal DNA testing reaches 99 percent”
Regarding fetal DNA test being a popular test lately, Tanır said, “Fetal DNA test can be performed from 10 week. has been examined. Although the accuracy rate of double and quadruple tests is about 85 percent, the speed of this test can be 95 and 99 percent. However, because it exceeds the cost, not every pregnant woman can undergo this test. Emphasizing that the Nifty test is especially preferred in later-term pregnancies or patients who have been found to be risky in duplicate or quadruple tests, Tanir said: “While it has an accuracy of 95-99 percent, this is a screening test, not a diagnostic test. Therefore, if we see a risk in this, advanced research is required.”