Wading in with boring stuff again, sorry!
The Verify test is different to Harmony (technically and in terms of patent cover) but does essentially the same job. So that won't go to the same lab as Harmony but to another lab. There are a few different varieties of test that do pretty much the same thing - they just vary slightly in the window of testing, turnaround time, technology used and in the accuracy of the results for the different trisomies (also implications for testing with multiple pregnancies, if that turns out to be relevant to you). When I looked a few months back none was obviously overall better than the others, they just had slightly different profiles of predictive accuracy for each of the three trisomies that they all tested for. It made my head spin a bit, TBH (and I was a research scientist so used to data!). I don't think you need to worry too much which to go for, as they will all do pretty much the same job and each of them will be tested in one or more central labs that are well controlled (because all are low volume and under patent). Harmony has been around longest so probably the most widespread availability. I just happen to know that for Harmony the samples all used to have to go to the US for the lab work but now TDL in London is licensed. Now samples don't need to be FedExed it has reduced cost and sped up the reporting times, which is good. I had my bloods done on the Sunday and got the results the following Friday, it was quicker than I expected!
Worth looking at national scanning companies like Baby Bond because they seemed to have quite a few clinics spread around, though no idea how much choice you will have where you live. Good luck!
Giz I wondered what the NHS would recommend if that happened. I suppose the problem is that neither Harmony (or equivalent alternative) and NHS NT /quadruple blood test is diagnostic, both are screening tests. Harmony et al give much lower rates of false negatives (and false positives) than standard NHS tests but both can be wrong. In the situation you were in EITHER the harmony test was a false negative OR the NT was a false positive (at that measurement). You can only definitely tell by doing a diagnostic invasive test. But if you don't do any further testing it is much more likely the harmony is correct.
Hopefully this post is helping with pregnancy insomnia, if nothing else 