It's been some time, but if I'm recalling correctly, the doctor seemed in favor of the additional testing. Whether that was because he was genuinely concerned,

It's been some time, but if I'm recalling correctly, the doctor seemed in favor of the additional testing. Whether that was because he was genuinely concerned, scared of a malpractice suit from insufficient testing, or something else I'm not privy to, I wouldn't know. As I mentioned elsewhere, maybe cost isn't a meaningful proxy for medical judgement, but on relatively trivial matters like wrist sprains, minor cuts, etc., it may often be a good way to discriminate, assuming appropriate follow-up to ensure that the initial decision wasn't errantly done.