Theranos changes none of that. Unless a test is CLIA waived, it needs a prescription to be done. They are trying to make it easier to take samples by requiring less blood to be drawn but it is silly for those in the field. Most chemistry tests take only several microliters of blood so yes the &quot;nanotainer&quot; would work for that. But most tests need venous blood, so it is irrelevant if you take a tube vs a ml when you have to take a vein draw anyway!