What does the CAT scan scan for?

You can look for many different things. It will show fluid collection in the belly, collapsed lungs, broken bones, internal bleeding, bleeding in the brain, tumors, blood clots in special cases, and...

Yes.Newer name for the same thing.CT is 'computed tomography'CAT was 'computer-assisted tomography'

An MRI scan is different from a CAT scan as it uses magnets and radio frequencies as opposed to X-rays to generate images of the brain.

Yes its just a shortened acronym. Computed Axial Tomography or Computed Tomography.

The CAT scan is computerized axial tomography. The words "axialized" and "tomographic" might be substituted in. A link can be found below. Oh, and we're moving away from that term now. It's just...