Prenatal Genetic Analysis Take a look at in 7 Questions

Prenatal Genetic Analysis Take a look at in 7 Questions

These days, it’s potential to acquire details about the well being of the infant earlier than delivery, to take precautions towards ailments and issues which will happen after delivery and even medical remedies throughout being pregnant. On this case, the significance of prenatal genetic analysis take a look at referred to as prenatal analysis take a look at has turn out to be evident particularly just lately. Memorial Dicle Hospital Gynecology and Obstetrics and IVF Middle Division, Assoc. Dr. Ali Emre Tahaoğlu answered the curious questions concerning the prenatal diagnostic take a look at.

1- WHAT IS PRE-BIRTH GENETIC DIAGNOSIS TEST (PRENATAL DIAGNOSIS TEST)?

Prenatal diagnostic take a look at is a non-invasive prenatal take a look at that helps screening chromosomal abnormalities and genetic problems that may be regularly seen in infants with extracellular DNA evaluation. It must be famous and underlined that this take a look at doesn’t present a definitive analysis for now and it’s identified that it’s a screening take a look at but.

2- WHAT IS THE GENETIC DIAGNOSIS TEST DONE?

This take a look at, particularly generally known as chromosomal ailments, corresponding to Down syndrome (trisomy 21), Edwards syndrome (trisomy 18), Patau syndrome (trisomy 13), in addition to gender dedication and genetic ailments associated to intercourse chromosomes, blood incompatibility {couples} ‘infants’ RH dedication. and as an auxiliary methodology within the analysis of some much less frequent genetic ailments.

3- WHO SHOULD THIS TEST BE RECOMMENDED?

On the emergence stage of this take a look at, it’s carried out for pregnant girls over the age of 35 or with a threat detected throughout ultrasonography, those that have a historical past of genetic problematic births, {couples} or first-degree relations with genetic ailments, whereas just lately all {couples}, together with extracellular DNA evaluation, must be instructed about their benefits and drawbacks. is really helpful. The topic of who and when the take a look at might be given has not been clarified but within the literature.

4- WHEN SHOULD THE TEST BE DONE?

Usually, such exams may be carried out after the ninth gestational week. The rise within the accuracy price is dependent upon the rise within the fractions of the infant (DNA components of the infant) within the mom’s blood over time. Prenatal analysis take a look at may be carried out earlier, in response to the 2-screen take a look at, which is the earliest take a look at carried out between 11-14 weeks. This is a vital benefit of the take a look at.

5- DOING THE TEST DAMAGE THE BABY?

Prenatal genetic analysis take a look at doesn’t hurt the infant. It doesn’t require surgical intervention and works solely with the blood pattern taken from the expectant mom.

6- HOW ACCURATE ARE THE TEST RESULTS?

The accuracy price of such exams is in most scientific publications; It has been proven to be over 99 % for Down syndrome, 98 % for trisomy18, and 99 % for trisomy13. These charges are extraordinarily excessive when it comes to the significance of the ailments talked about and are an essential motive for the take a look at to be carried out. Nonetheless, there’s additionally the chance that the take a look at is not going to give outcomes because of some elements and technical causes relying on the mom or the infant. The likelihood of experiencing such an issue varies between 0 and 11 % within the literature.

7- WHAT INFORMATION SHOULD BE GIVEN TO THE PARTIES BEFORE THE TEST IS TAKEN?

Earlier than the screening take a look at, the household historical past of the spouses and spouses must be questioned, and they need to be instructed that the take a look at is for screening. It must be talked about that the best screening take a look at for now could be the prenatal diagnostic take a look at and that the take a look at has some weaknesses and may be repeated in some instances and invasive interventions (corresponding to amniocentesis) may be carried out when crucial. All screening exams are as much as the spouses’ choice and it’s as much as their determination whether or not to have it carried out or not.


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