Final answer:
A conscious patient with several major fractures should be triaged and tagged as Yellow.
Step-by-step explanation:
A conscious patient with several major fractures should be triaged and tagged as Yellow during a mass casualty incident. The triage color codes are used to prioritize patients based on the severity of their injuries and the urgency of care needed. In the triage system, the yellow tag represents patients who are in need of urgent care but who can wait a little longer for treatment compared to those with more critical injuries.