Calcium requirements

Physiology:

Calcium plays an important role in the propagation of neuromuscular activity, regulation of endocrine functions, blood coagulation, and bone and tooth metabolism.  Calcium homeostasis is closely regulated by a complex interaction among PTH, serum phosphate, vitamin D system, and target organ.

Empiric daily requirement

Adults: 10 to 30 mEq/day

Infants//children:  0.5 to 3 mEq/kg/day