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Speech Exam

Flaccid Dysarthria

November 5th, 2019


  • Signs of Flaccid Dysarthria

  • Hypernasal speech
  • Breathiness of voice
  • Monotone speech - single pitch, single loudness
  • Impaired articulation - imprecise consonants
  • Shortened phrases
  • Drooling
  • Significance

  • Occurs in the setting of a lower motor neuron lesion (bulbar palsy), neuromuscular or muscular weakness.
  • Causes of Flaccid Dysarthria

  • Surgical cranial nerve trauma
  • Brainstem stroke
  • Motor neurone disease
  • Guillain-Barré
  • Polio
  • Neurosyphilis
  • Myaesthenia Gravis
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