A Dallas anesthesiologist was sentenced Wednesday to 190 years in prison for injecting a nerve-blocking agent and other drugs into bags of intravenous fluid at a surgical center where he worked, leading to the death of a coworker and causing cardiac emergencies for several patients.

A Dallas anesthesiologist was convicted Friday for injecting a nerve-blocking agent and other drugs into bags of intravenous fluid at a surgical center where he worked, which led to the death of a coworker and caused cardiac emergencies for several patients, federal prosecutors said. A jury convicted Raynaldo Rivera Ortiz Jr., 60, of four counts of tampering with consumer products resulting in serious bodily injury, one count of tampering with a consumer product and five counts of intentional adulteration of a drug, prosecutors said. A sentencing date has not yet been set for Ortiz, who faces up to 190 years in prison.