Final answer:
The most appropriate treatment for this patient is to assess for cervical spine injury.
Step-by-step explanation:
Based on the symptoms described, the most appropriate treatment for this patient would be to assess for cervical spine injury (option 4). The patient has presented with a large hematoma on the forehead and tingling in both hands, which could indicate a potential injury to the neck or spinal cord. It is important to rule out any cervical spine injury and ensure the patient's safety and provide appropriate care.