Vitamin D is an essential compound required for proper growth and development of teeth and bones. There are two forms of vitamin D that can be measured in blood. They are 25-hydroxyvitamin D and 1, 25- dihydroxyvitamin D.
This vitamin D test may be recommended to you if you have any abnormal calcium or phosphorus level or abnormal parathyroid levels. This test is also recommended if you have evidence of bone weakness or bone disorders or if you are at high risk of vitamin D deficiency
Inform your doctor if you are on any medications, have any allergies or underlying medical conditions before your Vitamin D3. Your doctor will give specific instructions depending on your condition on how to prepare for Vitamin D3.No specific preparation is needed for this test.