How to Test for ALS?

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There’s no specific test for ALS. The process of establishing a diagnosis can take anywhere from weeks to months. Your doctor may start to suspect you have ALS if you have progressive neuromuscular decline. Your doctor may ask you to do diagnostic tests including:
  • an EMG to evaluate the electrical activity of your muscles
  • an MRI that shows which parts of your nervous system are affected
  • blood tests to evaluate your general health and nutrition
  • nerve conduction studies to test your nerve function
Genetic tests may also be useful for people with a family history of ALS. Make an appointment to see your doctor if you have persistent problems with stiffness or weakness in your muscle. Keyword: test als