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Test Findings




A pH <7.35 is indicative of acidaemia; this may be due to a primary metabolic or respiratory acidosis.
  • Causes of Acidaemia

  • Metabolic acidosis - acid ingestion, lactic acidosis, ketoacidosis, renal failure, renal tubular acidosis, diarrhoea
  • Respiratory acidosis - hypoventilation or dead space ventilation
  • Interpretation

  • Reduced HCO₃ Â± reduced PaCOâ‚‚ - suggests metabolic acidosis
  • Elevated PaCOâ‚‚ Â± elevated HCO₃  - suggests respiratory acidosis
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Snapshot: Initialising...