Final answer:
In triage, the color black is generally used to designate patients expected to die, which is not listed in the provided options. The color yellow, however, typically signifies non-life-threatening injuries, so it would be the closest choice given the options provided, although it is not the standard designation for patients expected to pass away.
Step-by-step explanation:
In emergency management and trauma care, a patient who is expected and allowed to die is typically tagged with the color black. However, this question includes the options red, green, blue, and yellow. Within these color designations, the color yellow is commonly associated with patients who have non-life-threatening injuries, and their treatment can be delayed. The colors for emergency triage usually go as follows: Red is for patients needing immediate attention; green is for the walking wounded; blue can be for those in need of urgent care but not immediately critical, and black is for those who are deceased or beyond help. This system allows medical personnel to quickly and effectively prioritize care in a mass casualty incident. So, given the options and the standard color-coding system, the color for a patient who is expected and allowed to die would not match any of the provided choices.