A teenager kept waiting more than nine hours for an ambulance died, despite his call being categorised as needing an urgent response, an inquest heard. Jackson Yeow, 16, was unable to make it to a GP appointment on April 4, 2022, as his gastritis symptoms worsened. His mother dialled 999, but despite several follow-up calls, an ambulance did not arrive until after he fell unconscious - around nine and a half hours later. He was eventually taken to the University Hospital of Wales in Cardiff ,