On accident there is damage of cervical spine, the first line of management is -
"Initial care at the accident scene may be critical to survival. The first steps are to establish an airway, maintain Oxygenation and immobilize the cervical spine" — Skeletal injury

Many of the spinal injury patients are multiple trauma victims and therefore require emergency treatments.
The treatment priorities are preserving life (1st), limb, and function. The spine must be protected as these priorities are addressed sequentially. (i.e. undue movements of the spine are avoided)
The ABCs of trauma are followed in order of priority, with airway ventilation and circulation being secured before further evaluation proceeds.
Throughout the evaluation of other body systems, the cervical spine should be presumed injured and thus immobilized to avoid further neurological injury.
X- ray
Turn. head to side
Maintain airway
Stabilise the cervical spine