I had a nuchal scan done privately and still went to NHS one....
I now have a private result of 1:2590 and an NHS of 1:170 and feel quite distresses about the difference and that the NHS seems quite high risk.
The reason I went private was a v complicated early oregnancy where we discovered I was carrying identical twins one much stronger than the other. We were then told when one failed the other almost certainly would too as twin one would cause probs to twin two. As it was twin one virtually disappears and twin two has appeared to grow normally. We were looking at a v late NT scan as back log at local hosp and from my research I felt having bloods done earlier would give a more accurate result.
I know I shouldn't have had done both but it was impossible not to have another peek at my baby. I will be 39 by due date.
If anyone can shed any light on the discrepancy I would be v v grateful.