Missouri State CMT Practice Test

You're being tested on a common medical acronym for brain injury. CHI stands for Closed Head Injury, which means the skull remains intact after trauma even though the brain inside may be injured from the impact or rapid movement. This distinguishes it from injuries where the skull is penetrated or fractured. The other terms describe conditions that don’t fit this acronym: they refer to things like a hemorrhagic event, chronic inflammation, or an unfamiliar syndrome, none of which align with the standard meaning of CHI. So Closed Head Injury is the correct expansion.