How is amyotrophic lateral sclerosis (ALS) diagnosed?

Updated: Jul 20, 2021
  • Author: Ryan Ghusayni, MD; Chief Editor: Andrew K Chang, MD, MS  more...
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Emergency physicians should be familiar with amyotrophic lateral sclerosis (ALS) and should consider the diagnosis in patients with only motor syndromes.

The diagnosis of ALS is primarily clinical. Electrodiagnostic testing contributes to the diagnostic accuracy.

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