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Diabetic Exam


November 28th, 2019

Cheyne-Stokes Respiration

  • Look For

  • Periods of hyperventilation interspersed with periods of apnoea or bradypnoea.
  • Significance

  • Cheyne-Stokes respiration occurs when hyperventilation lowers the arterial CO₂ below the apnoeic threshold.
  • Causes of Cheyne-Stokes Respiration

  • Physiological - at high altitudes
  • Obstructive sleep apnoea
  • Congestive cardiac failure
  • CNS - stroke, traumatic brain injury, tumour

Kussmaul Respiration

  • Look For

  • Deep, rapid respiration.
  • Significance

  • Associated with severe metabolic acidosis, especially diabetic ketoacidosis.
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