The U.S. Attorney’s Office in Denver said 30-year-old Kacye Unruh was arrested Thursday after being indicted on charges including tampering with a consumer product, deceitfully obtaining a controlled substance and making false statements.

Unruh was being held in jail Friday, and records don’t list an attorney who could comment on her behalf. A hospital spokeswoman did not immediately return calls seeking comment.

Prosecutors say Unruh took vitals of fentanyl from the hospital’s dialysis area. She is also accused of lying to a special agent with the Food and Drug Administration about taking drugs from an Oklahoma medical facility where she also worked.