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Test Findings

Elevated Base Excess



  • A base excess greater than +2 suggests the presence of metabolic alkalosis.
    • Causes of Elevated Base Excess

    • Bicarbonate excess - milk alkali syndrome (antacids), massive transfusion, dialysis
    • GI acid loss - vomiting, NG aspirates, gastric fistula
    • Renal acid loss - diuretics, hyperaldosteronism, Cushing's, steroids
    • Compartmental shift - hypokalaemia
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