Decreased KCO

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• Synonyms

  • Decreased carbon monoxide transfer coefficient
  • Low lung transfer factor
  • Decreased diffusion coefficient

• Causes

  • Parenchymal lung disease
  • Emphysema
  • Anaemia
  • Right to left shunt
  • Pulmonary embolus
  • Pulmonary hypertension
  • Carbon monoxide toxicity
  • Pulmonary oedema
  • Lymphangitis
  • Pulmonary arteriovenous malformation

• Parents

  • Decreased lung function