Yes. It’s very common for patients to sign waivers and other forms before a medical procedure. Waivers are intended to help keep patients informed and to help legally protect medical care providers.
But here’s the thing: a waiver doesn’t mean that a care provider cannot be held liable if they are negligent. You can ask a lawyer about the specific contents of your waiver, but waivers do not always prevent people from pursuing compensation when they’re hurt.