MedSchool: Ace Your OSCEsThe Medical Company
GET - On the App Store
Test Findings


February 7th, 2020


An increased PaCO₂ of greater than 44 mmHg on an arterial blood gas suggests the presence of a respiratory process - either primary (respiratory acidosis) or secondary (respiratory compensation of metabolic alkalosis).
  • Interpretation

  • Reduced pH with elevated PCO - suggests respiratory acidosis
  • Elevated pH with elevated PCO and elevated HCO₃ - suggests respiratory compensation for metabolic alkalosis
  • Normal pH with elevated PCO and elevated HCO₃ - suggests mixed respiratory acidosis-metabolic alkalosis
Want more info like this?
  • Your electronic clinical medicine handbook
  • Guides to help pass your exams
  • Tools every medical student needs
  • Quick diagrams to have the answers, fast
  • Quizzes to test your knowledge
Sign Up Now

Snapshot: Initialising...