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Test Findings
 
 

Hypercapnia

 
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Overview

An increased PaCOâ‚‚ 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 PCOâ‚‚ - suggests respiratory acidosis
  • Elevated pH with elevated PCOâ‚‚ and elevated HCO₃ - suggests respiratory compensation for metabolic alkalosis
  • Normal pH with elevated PCOâ‚‚ and elevated HCO₃ - suggests mixed respiratory acidosis-metabolic alkalosis
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Snapshot: Initialising...