Q.

Calitriol (1,25-dihydroxycholecalciferol)

A. inhibits Ca++ absorption from the gut
B. is formed in the proximal renal tubules from a less active precursor
C. levels rise in response to increase serum PO4 levels
D. inhibits osteoclasts function
E. inhibits osteoblasts function
Answer» B. is formed in the proximal renal tubules from a less active precursor
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