Cranial Nerve Reflexes

 Cranial Nerve Reflexes

  • 1. Critical in establishing level of damage in coma
  • 2. Critical to finding a cause (focal—structural lesion; nonfocal—metabolic)
  • 3. Pupil reaction: II input, III output
  • 4. Doll’s eyes or cold water calorics: VIII input; III, IV, VI output
  • 5. Gag: IX input, X output
  • 6. Able to breathe: medulla function
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