I feel for you being in this stressful position. How annoying that they don't have your BT results handy to give you some more info now, instead of waiting a week!
With my NT scan, my measurement was extremely high (5 to 7 with average of 6) which on its own is about 1 in 50 chance of a chromsomal abnormality. The Dr was able to combine with my BT results on the spot to give us our weighted risk.
Unfortunately whatever was in my BT results pushed our risk up even higher than the Dr had originally estimated - 1 in 20.
However - no one here can tell you what your BT results will do to your risk rating because only the pathologist and your Drs know your results! They look for certain markers in your blood and if you have them, the risk factor goes up, if you don't, it goes down.
DH and I endured a lot of stress and pain over our nuchal fold measurement and risk rating and underwent further testing. We are now 32 weeks with to the best of our knowledge a happy, healthy baby girl. So please don't stress - remember that the NF measurement combined with the BT will only give you a risk factor, like 1 in 500, it will not tell you anything definitive.
Hope this helps, good luck and let us know how you go.
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