A hero vet turned doctor to save a double tragedy when a mother took her family dog in to be put down and had a massive heart attack. Lizzie Bevis, 30, visited Quarrington Veterinary Surgery in Sleaford, Lincs., with her mum Denise Draycott, 55, and her sister Christine Draycott, 22, with their seven-year-old Jack Russell, Daisy. When vet Matthew Fry shaved Daisy's leg in preparation for the lethal injection, Lizzie said she had to sit down. But seconds after the dog was given the killer dose, Lizzie started making loud, strained noises before she stopped breathing, collapsed on the floor and turned blue. Wasting no time Matthew, got nurse Sarah Mainwaring to give her oxygen and dial 999, while he performed life-saving CPR. Paramedics arrived in minutes and rushed Lizzie to Lincolnshire hospital on July 13, where she was put into a medically induced coma for two days. She was transferred to Nottingham City Hospital's Acute and Cardiac Unit on July 17 where they discovered Lizzie suffers from Long QT syndrome, a rare heart condition where stress can induce irregular heartbeats that can prove fatal.