A 77-year-old man who spent decades working for the NHS dies after receiving insulin in error, an inquest hears. The reports say Donald Gough was “erroneously” given an insulin injection at the end of a medical appointment at University Hospital of Wales in Cardiff. He later died four weeks after the incident. The accounts describe the event as a medication error in which insulin was administered when it should not have been. The inquest focuses on what happened during the surgery and how the incorrect injection was provided, including the circumstances leading up to the administration and the care that followed afterward. Details on the specific clinical context, the immediate response by staff, and any contributory factors are not provided in the shared excerpts. The matter is presented as an investigation into the cause of death and the circumstances surrounding the mistaken insulin administration.