I might be wrong but my understanding is that the patients' blood was tested on legit equipment so they did get valid results. It just wasn't using the Theranos technology. So investors (and Wallgreens) were defrauded because they were mislead but the patient experience was valid (since the results were correct and from proper equipment).
Not exactly sure what you are referring to, but this seems consistent with my article.
> To use traditional machines, Theranos had to dilute some of the smaller samples it collected. It appears that Theranos carried out another 60 tests using this method in December 2014.
> Some of the potassium results at Theranos were so high that patients would have to be dead for the results to be correct, according to one former employee. This is because, lab experts told The Journal, "finger-pricked blood samples can be less pure than those drawn from a vein because finger-pricked blood often mixes with fluids from tissue and cells that can interfere with tests."
