KEY POINTS
  • Former Theranos senior scientist Surekha Gangakhedkar testified on Friday that she was "worried about the launch" of the Edison blood-testing machines in Walgreens stores, adding "I was actually scared."
  • She told the court that Elizabeth Holmes was aware of the inaccuracy issues.
  • Gangakhedkar was granted immunity from criminal charges in exchange for her testimony.
Elizabeth Holmes, CEO of Theranos, attends a panel discussion during the Clinton Global Initiative's annual meeting in New York, September 29, 2015.

SAN JOSE, CALIF. – A former Theranos scientist testified Friday that Elizabeth Holmes pressured her to validate blood test results from the company's Edison machine to speed up a rollout in Walgreens despite problems with the device's accuracy.

Surekha Gangakhedkar, a senior scientist at Theranos for eight years who reported directly to Holmes, testified that she returned from a vacation in August 2013 and discovered that Theranos was about to launch its Edison blood-testing devices in Walgreens stores.