Which patient requires immediate transport to a medical facility due to their condition?

The patient who requires immediate transport to a medical facility is the unresponsive 30-year-old passenger involved in a serious head-on motor vehicle collision (MVC). This choice is critical because unresponsiveness is a significant indicator of potential life-threatening conditions, such as traumatic brain injury, internal bleeding, or spinal injury, especially following a severe incident like a head-on collision.

In trauma cases, the mechanism of injury plays a vital role in clinical assessment. Being involved in a serious MVC can lead to multiple trauma, and the unresponsiveness indicates that the patient's neurological status is compromised. Immediate evaluation and intervention at a medical facility are essential to address potential life-threatening conditions.

Other patients listed may need care but do not present with the same level of urgency. The conscious individual with a broken leg, while in need of treatment, does not have an immediate threat to life. The 40-year-old with chest pain could be serious, but without additional information regarding the nature of the pain or any other critical symptoms, immediate transport is less urgent compared to the unresponsive patient. Lastly, the 22-year-old with a sprained ankle is not likely to be facing a life-threatening situation. Thus, the unresponsive patient is prioritized for immediate transport.