Nikolas
Created page with "== Calcium homeostasis == Calcium in the serum exists in one of two forms; it’s either in the free, ionized Ca2+ form or bound to proteins, especially albumin. The proportion is approximately 1:1, meaning that 50% of serum calcium is free while 50% of serum calcium is bound. Only the free calcium is biologically active; if 100% of serum calcium was bound it would be equal to having no calcium in the serum, functionally speaking. The normal calcium level in the serum i..."