I see. So what is the harmony test at the moment? An extra blood test for those whose results have come back high risk? Oh yes, that's exactly what I was saying. I've always just presumed it was a 'guess' based on age, nuchal fold, hormone blood test. Of course it can cause unnecessary stress, you can always have that 1 in chance. Mine is 1 in 1041 but that doesn't really put my mind at rest. It's probably my age (though I'm not that old) based on age I was told I had a 1 in 400 chance and my pappa-a is low so all I can presume is that the nuchal fold wasn't a high number. Either way it's just a statistical guess so I don't get how it's rubbish as there's always the chance you could be low risk and have a baby with Down's Syndrome X