If Cervical Spine Precautions Were Not Implemented Before Arrival at the Hospital,the

If cervical spine precautions were not implemented before arrival at the hospital,the emergency department team initiates them before performing any other procedures on the patient.A trauma team member can stabilize the head and neck,if necessary,until a cervical collar is placed.What event needs to take place before the team removes the cervical collar and continues care?

A) A halo traction apparatus is applied.
B) A cervical radiograph is obtained to rule out injury to the neck.
C) A CT scan with contrast of the upper body is obtained to rule out vascular involvement.
D) A myelogram of the cervical spinal canal is obtained to rule out injury to the spinal cord.