Aloss of consciousness is an example of what kind of injury?
baseline injury
microtrauma
critical injury
overuse injury

Microtrauma is term for minor injuries.
Baseline is assessments of preformance before any injury occurs.
Overuse injuries are caused by repetitive trauma to a specific part of the body.
Critical injury means that it's serious and a life threatening injury.

So, loss of consciousness would definitely be classified as a Critical Injury.

Hope this helps. :)