How is Guillain-Barre syndrome (GBS) diagnosed?

Updated: Jul 14, 2021
  • Author: Michael T Andary, MD, MS; Chief Editor: Milton J Klein, DO, MBA  more...
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GBS is generally diagnosed on clinical grounds. A basic peripheral neuropathy workup is recommended in cases in which the diagnosis is uncertain. Biochemical screening can also be conducted and would include the following studies:

  • Electrolyte levels

  • Liver function tests (LFTs)

  • Creatine phosphokinase (CPK) level

  • Erythrocyte sedimentation rate (ESR)

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