• Magnesium
    • Hypomagnesaemia
      • Decreased intake
        • Dietary
        • Malabsorption
      • Excess renal loss
        • Drugs
        • Bartter's syndrome
        • Renal dysfunction
        • Hyperaldosteronism
        • Electrolyte disturbances
      • Extra-renal loss
        • GI tract
      • Redistribution
        • Primary hyperparathyroidism
        • Insulin administration
        • Massive citrates blood transfusion
      • Signs
        • CVS
          • HT
          • Angina
          • Dysrrhythmias
          • Digoxin toxicity
        • Myoclonus, stridor, dysphagia, tetanus
        • CNS
          • Psychiatric disturbances
          • Convulsions
          • Coma
        • Other electrolyte disturbances
          • Hypokalaemia
          • Hypocalcaemia
    • Hypermagnesaemia
      • Usually iatrogenic
        • Can be due to renal failure
        • Common post CPB
      • Signs
        • Nausea
        • Vomiting
        • Respiratory arrest
        • Cardiac arrest
        • Treatment
          • IV calcium gluconate
          • Fluids
          • Glucose/insulin
    • Uses
      • Toursade-de-Pointes
      • Pre-eclampsia (4g loading then 1g/hr)
        Link:frcamindmaps.org/trials.html
      • Intubation (40mg/kg)
      • Used during phaeochromocytoma as reduces catecholamine release
      • Asthma
      • Tetanus
    • Potentiates NMBDs
    • CEACCP
      Link:ceaccp.oxfordjournals.org/content/1/1/16.full.pdf