Does a radiology degree transfer between states?

If I get a radiology license in Ohio can it transfer to Florida or Texas or Nevada? Do I need to retake a test or just pay more money?

I know there is a national registry of radiology techs but that most states require additional testing or licensing.

Can someone help me choose my college major?

I can’t pick between forensic science, nursing, or a radiology technology. I love forensics and find it very interesting, but I also love the medical field. Can anyone tell me some pros and cons of my choices?