exactly, the dilution of samples needs to move to the forefront of the discussion.<p>Theranos:<p>(1) takes a much smaller amount of blood, claiming they will use the Edison machine to analyze it<p>(2)(a) sometimes uses the Edison machine, whose accuracy is disputed<p>(2)(b) sometimes dilutes the sample to test using a regular machine. The dilution moves normal concentrations outside the range of detection of the machine, so when a 10x dilution has its concentration multiplied by 10, there are huge errors, often causing misdiagnosis<p>When Theranos receives a proficiency test, they don&#x27;t receive a small amount of blood. They receive the amount of blood a normal lab receives. These are the only samples that they can run in the manner the standard machines were designed for.<p>Theranos competes on costing less and taking less blood. The doubts are all around whether you can get accurate results with smaller amounts of blood from a different body part.