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Hypoventilation / hypercarbia

  • Ddx

    • obstructive lung dz (wheezing)
      • COPD
      • asthma
    • restrictive lung dz
      • pulmonary fibrosis
      • asbestosis
      • silicosis
      • kyphosis, scoliosis
      • pregnancy, obesity, Pickwickian syndrome
    • parenchymal lung dz
      • pneumonia
      • ARDS
      • pulmonary edema
      • late stage PE
    • anatomical lung dz
      • pneumothorax
      • flail chest
      • airway obstruction
    • neuromuscular
      • botulism
      • polio
      • GBS (recent infection)
      • MG (fatigable weakness, ptosis)
      • ALS
      • brain mass or injury
      • spinal mass or injury
      • muscular dystrophy (gower sign)
    • compensatory response
      • metabolic alkalosis [ABG]
    • other
      • electrolyte abnormalities
      • O2 admin to COPD pt
      • CO2 rebreathing
      • drugs
  • Labs

    • Chem
    • ABG (PCO2 elevated)
    • CXR
    • head CT if suspect CNS

  • Print | Citations

    Disclaimer: MDHero Workups is for educational use only, and is not meant to replace the clinical judgement of a professional. We do not guarantee the accuracy of any information on this website.