The reason we opted to have the nuchal scan is for the reason that if there was something wrong with our child we would terminate. For us it wouldn't be fair to bring a child into the world if he/she couldn't have quality of life, the impact financially and the impact it would have on our other child/children. We were faced with this when ds2 was high risk of downs, Edwards and patau. While waiting for the final result we had made the decision to terminate if he had either of the 3. It was the worst few weeks of our lives but fortunately he got the all clear.