Skip to main content


Signs and symptoms#

  • uncontrolled rapid breathing (25-30 times/min)
  • feeling weak
  • lightheaded
  • diaphoresis (sweating)
  • feeling of lump in throat and suffocating (globus hystericus)
  • dizziness
  • possible palpitations and chest pain
  • possible muscle pain
  • carpopedal spasm


  • be calm and reassuring
  • discontinue dental treatment
  • clear the mouth of all foreign objects
  • assess airway
  • have the patient breathe slowly and shallowly into paper bag, or mask (6-10 times/min)
  • monitor blood pressure, pulse and respiratory rate
  • dismiss patient only after vital signs return to normal


Related Pages#