A patient you are treating appears to be deficient in vitamin D. You have previously prescribed vitamin D supplements, but they do not appear to be working. Which organs and/or tissues should you check to make sure that the enzymes they produce are functioning appropriately?

Question

Quizplus · Accepted Answer

Vitamin D is converted into its active form by two enzymes: the liver enzyme, 25-hydroxylase, and the kidney enzyme, 1α-hydroxylase. Therefore, it is important to check the functioning of both the liver and kidneys to ensure proper activation of vitamin D. The pancreas does not play a significant role in vitamin D metabolism.

A Patient You Are Treating Appears to Be Deficient in Vitamin