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Alkalosis

  • Criteria

    • pH > 7.45
  • Common causes

    • respiratory: anxiety, asthma, PE
    • metabolic: diuresis, NG suction
  • Labs

    • resp rate, O2 sat, ABG, BMP
  • Tx

    • treat underlying cause
    • lorazepam 1-2mg IV or PO for anxiety
    • fluids, replete potassium for renal/GI loss
  • Ddx

    • respiratory alkalosis (hyperventilation, PCO2 < 35)
      • anxiety, panic attack
      • asthma attack
      • salicylate ingestion
      • hypoxia
      • pneumonia
      • pneumothorax
      • PE
    • metabolic alkalosis (bicarb > 28)
      • vomiting
      • NG suction
      • diuretic
      • hypokalemia
      • hyperaldosteronism (hypertension)
      • Cushing's
      • bicarb administration
      • milk-alkali syndrome
      • antacids in renal failure
      • Bartter syndrome

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