Hello - I'm having NT testing in the next few weeks and was wondering if anyone could help me with the answers to these questions before I go:
- is chromosomal abnormality likelihood indicated by high/low or are we given numbers, e.g. 1:100?
- what is considered high? I thought I'd read somewhere than 1:140 was the "high" threshold, but aged 40 the general risk is 1:100, so would a "normal" risk level at that age prompt them to offer amnio etc?
- what are the "normal" ranges for HCG and papp-a protein? (Just so I can understand the results) - will they offer the exact numbers?
- is it possible that a chromosomal abnormality can be picked up by the test, despite there being no soft markers during the scan?
- what does the harmony test measure that is different to the NT test? Is it worth having the harmony test before NT results come back? How much more reliable are harmony tests than NT tests?
Sorry for all the questions, I'm just trying to get my head around it all.