Arterial Blood Gas Analysis

Authors:  Gillian Kelly / Editor: Jason M Kendall / Reviewer: Michael Perry, Josh Davison / Code: A2, PP2, R1, R2Published: 19/07/2021


This session is about the evaluation of arterial blood gases in the emergency department.

After completing this session you will be able to:

  • Explain acid-base balance and the principles of physiological buffering
  • Describe the different types of acid-base derangement and their effects on the oxyhaemoglobin dissociation curve
  • List the causes of acid-base derangement including problems which affect the oxygen carrying capacity of the blood
  • Describe the compensatory mechanisms of acid-base derangement
  • Interpret an arterial blood gas assay


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