Answer: Concussion
Step-by-step explanation:
Primary triage survey is done as a part of the initial assessment of an injured person. It is to check the injuries, stability of the vital organs, and the mechanism of injury.
Concussion can be the first finding of the primary triage survey. It will be visible on the head. It results in the brain injury. The effects can be temporary or severe. The person may loose memory, coordination and may lead to coma.