What is the most appropriate procedure for a 70-year-old male with neck pain after a rear-end collision who is conscious and alert?

The most appropriate procedure for a 70-year-old male with neck pain after a rear-end collision, who is conscious and alert, is to apply a cervical collar while ensuring he is secured properly for transport. In this scenario, the cervical collar helps stabilize the neck and minimize movement, which is crucial after a potential spinal injury caused by the collision. This approach addresses the risk of worsening any possible injury during movement or transport.

Additionally, securing the individual to a cot with head elevation is a reasonable measure since it provides comfort and reduces stress on the cervical spine. Maintaining head elevation can also be beneficial in preventing complications, especially in elderly patients who may have additional risks related to head trauma and neck injuries.

This method emphasizes the importance of prioritizing spinal precautions while ensuring the patient's overall safety and comfort during transport to a medical facility, where further evaluation and treatment can be administered.