Secret dilution of capillary samples
Theranos Official Marketing — commercial advertising, Walgreens Wellness Centers Rollout Brochure
“Theranos tests are certified by CLIA and performed with the highest precision, using proprietary technology that redefines lab diagnostic accuracy.”
Dr. Adam Rosendorff — Theranos Lab Director, Internal resignation email to Elizabeth Holmes
“I am extremely uncomfortable with the accuracy and reliability of the Edison platform. We are diluting patient samples beyond validated thresholds to force them onto Advia machines, resulting in wildly erratic and potentially fatal clinical readouts.”
The Split:Walgreens customers were assured of clinical precision. The laboratory's own certified medical director resigned after documenting that forced dilutions on unauthorized commercial machines yielded erratic, dangerous patient errors.
When a medical startup's chief clinical officer or lab director resigns abruptly without explanation, the clinical claims have already unraveled.