Final answer:
The right treatment in this case would consist of immobilizing the spine, administering oxygen, and monitoring for potential vomiting. These steps are critical to manage possible hematoma and to maintain necessary oxygen supply to the brain.
Step-by-step explanation:
The most appropriate treatment for this patient includes: D) immobilizing the spine, administering oxygen, and monitoring for vomiting.
The symptoms suggest a possible hematoma due to a strike to the lateral side of the head, potentially fracturing the bones of the pterion. The pterion is a vital clinical landmark, and an impact on this region can damage a significant skull-supplying artery. If left untreated, the accumulation of blood exerts increased pressure on the brain, which must be closely monitored.
Therefore, observing the spine (since trauma to the head can be accompanied by neck injury) .
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