FYI, even if you had broken your finger the treatment is almost always splinting and time. Most doctors wouldn't do an x-ray or a vibrating test. Does it hurt? Splint it, come back in a week. Next.
Get it set properly, then splinting and time. If you're sure you (or someone around you) knows how to set it, you maybe want to go that route. But if it's not set right, and you splint it there, that may not work out so well...