10 關於創傷性脊椎損傷的敘述，下列何者錯誤？
(A)C3 以上的受傷通常會導致窒息（apnea）
(B)C3～5 間的受傷剛開始會有好的呼吸，但是會因為疲勞和無法清除分泌物而衰竭
(C)肩部無法外展（shoulder abduction impairment）通常是 C7 nerve root 受傷
(D)low spinal cord injury 的檢查包括 anal sphincter tone，anal wink 和 bulbocavernosus reflex

Radiculopathies by nerve level:

• C5 radiculopathy

• - Weakness: shoulder abduction
• - Test: Have patients hold their shoulders in abduction, against downward force by the examiner.

• C6 radiculopathy

• - Weakness: elbow flexion, wrist extension
• - Test: Have patients lift their arm against resistance by the examiner.

• C7 radiculopathy

• - Weakness: elbow extension, wrist flexion
• - Test: Have patients push with their arm away from their chest against resistance by the examiner.

• C8 radiculopathy

• - Weakness: thumb extension, wrist ulnar deviation
• - Test: Have the patients hold their extended fingers together against the examiner's attempts to open the fingers.