Whenever I see something about a single blood sample, I think of the Theranos fraud. I suppose in this case it's a false alarm, because they're talking about a

Whenever I see something about a single blood sample, I think of the Theranos fraud. I suppose in this case it's a false alarm, because they're talking about a single type of test (that "consumes" the sample) with a rich result set, rather than many different kinds of tests that each require pristine inputs.