Musculoskeletal pain
Pain occurs on side away from head movement
Radiculopathy
Spurling test
Apply gentle pressure to patient's head during extension and lateral rotation
May reproduce patient's radicular pain with radiation into ipsilateral upper extremity
Abduction relief sign
Placing hand of affected extremity on top of head leads to relief
Indicates soft disk protrusion
Pain occurs on side away from head movement
Spurling test
Apply gentle pressure to patient's head during extension and lateral rotation
May reproduce patient's radicular pain with radiation into ipsilateral upper extremity
Abduction relief sign
Placing hand of affected extremity on top of head leads to relief
Indicates soft disk protrusion
Apply gentle pressure to patient's head during extension and lateral rotation
May reproduce patient's radicular pain with radiation into ipsilateral upper extremity
Placing hand of affected extremity on top of head leads to relief
Indicates soft disk protrusion
Consider x-ray for:
Chronic<unk>  (weeks-months)
History of malignancy
History of RA, ankylosing spondylitis, psoriatic spondyloarthropathy
Consider MRI for:
Neurologic signs/symptoms
Plain films show bone or disk margin destruction
Cervical instability
Epidural abscess is suspected
Chronic<unk>  (weeks-months)
History of malignancy
History of RA, ankylosing spondylitis, psoriatic spondyloarthropathy
Neurologic signs/symptoms
Plain films show bone or disk margin destruction
Cervical instability
Epidural abscess is suspected
Neck pain
Musculoskeletal
Chest pain 
Torticollis
Chest wall pain
Dystonic reaction
Sore throat
Cervical spondylosis