Pharm 101: Calcium



Clinical use
  • Treatment of hypocalcaemia
    • Major causes are hypoparathyroidism, vitamin D deficiency, chronic kidney disease, malabsorption
  • IV, IM or PO administration
    • Calcium carbonate is preferred oral option (40% calcium and antacid properties)
    • Calcium gluconate is preferred IV option (less irritating to veins)
  • IV administration:
    • Severe symptomatic hypocalcaemia
    • Slow infusion of 5-20ml of 10% calcium gluconate
  • Adverse effects:
    • Local irritation to veins
    • Cardiac arrhythmias with rapid administration
    • Hypercalcaemia


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MBBS (UWA) CCPU Emergency Medicine Advanced Trainee based in Melbourne, Australia. Co-author of the LITFL ECG Library. Likes Ultrasound, Echo, ECGs, and anything and everything with caffeine. Part of the 2021 ANZCEN Clinician Educator Incubator Programme | @rob_buttner | ECG Library |

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