Just got my NIPT results Back. Chromosome 15 is showing indeterminate micro deletion. We have an appointment with the genetic counselor but I was hoping somebody could share more info. They made it seem that it could just be an issue with the blood test but reading into it. I also know there could be larger problems. We will likely have to go for an amnio, but that won’t be for another three weeks. Any stories of people who had indeterminate micro deletions on there and It turned out to be fine thank you.
Re: Indeterminate micro deletion nipt
Chromosome 15 issues on an NIPT is often very (less than 1%) true positives. It's only a flag for risk, but the raised risk is from something like 0.05% regularly to 0.35% with the NIPT findings. Is it 7 times higher? Yes. Is it still so deeply unlikely? Yes. It is also very likely that the issue is confined to the placenta and not present in the baby - so an amnio is the best course of action most definitely but if there have been no other markers or issues on ultrasound, your chances of there being a real issue are still quite, quite low. To the very best of your ability, remain calm. NIPT testing is not FDA approved, and for anything except trisomy 21, it's actual predictive capabilities are very shakey. I of course can't guarantee that everything is okay and I am not trying to provide you false hope, however I don't want you to be distraught for the next 3 weeks thinking this is an inevitable true positive. This is a shakey screening result that can only say "Maybe more testing should be done for this" and if the amnio comes back negative, it is still possible the abnormality is in the placenta but other than the possibility for rare placental insufficiency things often can be considered back to 'normal' risk pregnancy. I hope your amnio returns all clear. In the mean time, I recommend trying the anxiety management tool below. Wishing you the best.
Instituting the Worry Window - an anxiety management tool