The Development of Immobilization Induced Hypercalcemia in the Outpatient Setting - A Case Report.

Immobilization induced hypercalcemia is an uncommon and serious disorder that requires a thorough evaluation to exclude more common causes of an elevated calcium. Although the pathogenesis is not clearly illuminated, immobilization results in an uncoupling between osteogenic and osteoclastic factors that maintain bone homeostasis. When calcemic bone resorption overwhelms urinary calcium excretion, blood hypercalcemia ensues.