Catherine Shannon Dunton, 54, has pled guilty in federal district court in Fort Pierce to tampering with a consumer product. From approximately February 28 to April 18, 2022, Dunton, a Florida licensed Registered Nurse (RN), worked at an outpatient surgical center in Jensen Beach, Martin County, Fla. as a circulating nurse. While working at the center, Dunton took vials of fentanyl, a narcotic painkiller in liquid form, and self-administered it by injection. To avoid detection, she replaced the fentanyl from nearly 450 vials with saline solution, and then returned the adulterated vials to the center for use during outpatient surgical procedures. At sentencing, Dunton faces up to 10 years in prison, followed by up to three years of supervised release, and a fine of up to $250,000. Sentencing is set for June 27, at 10:30 a.m., before U.S. District Judge Aileen M. Cannon.