Test Findings
 

Hypocapnia

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Overview

  • A reduced PaCO₂ of less than 36 mmHg on an arterial blood gas suggests the presence of a respiratory process - either primary (respiratory alkalosis) or secondary (respiratory compensation of metabolic acidosis).
    • Interpretation

    • Elevated pH with reduced PCO - suggests respiratory alkalosis
    • Reduced pH with reduced PCO and reduced HCO₃ - suggests respiratory compensation for metabolic acidosis
    • Normal pH with reduced PCO and reduced HCO₃ - suggests mixed respiratory alkalosis-metabolic acidosis
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