For urgent treatment of acute hypocalcemia, which route is preferred for calcium administration?

• A. Oral calcium
• B. Intramuscular calcium
• C. Subcutaneous calcium
• D. Intravenous calcium

Answer: (D)

Rapid correction of acute hypocalcemia requires a route that delivers calcium quickly and predictably. Intravenous calcium provides an immediate rise in serum calcium and can be titrated while closely monitoring the patient’s cardiac rhythm and neuromuscular status, which is crucial when symptoms like tetany or airway compromise are possible. Oral calcium, though useful for maintenance, is too slow and its absorption is variable in an acute crisis. Intramuscular or subcutaneous administration is not suitable here due to slower, unpredictable absorption and higher risk of local tissue injury. So, IV calcium is the best choice for urgent treatment to stabilize the patient quickly.