Heart disease is prevalent in Bull Terriers but currently there isn’t a widely accepted scheme for screening.
Heart Testing schemes are constantly being reviewed and updated by VCS and The Kennel Club. The information here is correct at the time of writing (June 2024). If the links do not work it is advisable to refer to the Kennel Club website to check for updated health information about your breed and then to check on your breed club website.
https://www.thekennelclub.org.uk/search/breeds-a-to-z/