Vitamin D supplementation

Riddle me this: If someone is osteopenic, we give Calcium/Vitamin D supplementation. The vitamin D in caltrate is 400 U of D3, BID, so that's 5600 U of D3 per week. (that D3 is a calcitriol analog, right? read to go). If we later find out same patient is 25-hydroxy deficient (the typical lab we check), does it then make sense to add ergocalciferol (a D2 analog), 50KU/week, on top of the D3 we're giving? Put another way, if you're already giving a D3 analog, why would you give a D2... Read more
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Tags: Internal Medicine and IM Subspecialties Source Type: forums