II. Technique

  1. Perform Brachioradialis Reflex
    1. Strike reflex hammer at distal radius overlying radial styloid process region
    2. Observe for flexion at elbow (normal) and fingers (abnormal)

III. Findings

  1. Normal
    1. Normal Brachioradialis Reflex results in brachioradialis contraction and elbow flexion
  2. Abnormal
    1. No brachioradialis contraction or elbow flexion
    2. Wrist and finger flexion only

IV. Causes: Abnormal Reflex

  1. Typically due to C5-C6 spinal cord lesion
  2. Associated with an absent Biceps Reflex and hyperreflexia at the triceps

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