I'm just an ordinary Joe and it was pretty obvious to me from the beginning that this was mostly just a scam. For one, she didn't have the necessary background to really create anything new and inventive here. Second, her supposed goal was a "no needles" system, which of course she didn't really have. Third, my wife is a nurse and she told me that finger-prick samples are mostly useless for many of the tests that might need to be run, so instead relatively large amounts of blood have to be drawn from a vein. Also that one reason why they often draw multiple vials of blood is because the test results from each individual vial may vary considerably; I forget the details though.

That said, microfluidics (where you use minimal sample sizes and minimal reagents and such) is a real and growing thing, and I assume that she was just trying to ride that wave. But it turns out that this doesn't work so well for blood samples.