There is a prolonged sequence where an antagonist attempts to murder multiple disabled people and then bombs the hospital they're staying at. Although the main motivation was revenge against the protagonist and not explicit hatred towards disabled people, that scene can be extremely upsetting if you are triggered by violence against disabled people.
It looks like it's used off-screen after someone is rushed to surgery and tools are seen hitting a metal pan after being used. It's very fast but one tool may be a syringe.