![Vitamin D Level](http://shop.bloodworknow.com/cdn/shop/products/bloodtestlabs_e764dd24-f788-46c5-b6b1-23fe6a4fab28_{width}x.jpg?v=1592757064)
Why Get Tested?
To determine if you have a vitamin D deficiency; if you are receiving vitamin D supplementation, to determine if it is adequate
When to Get Tested?
When you have an abnormal calcium, phosphorus, and/or parathyroid hormone level; when you have evidence of bone disease or bone weakness; when you are at high risk of deciency or your doctor suspects that you might have a vitamin D deficiency; prior to starting drug treatment for osteoporosis; periodically to monitor treatment of vitamin D deficiency
Sample Required?
A blood sample drawn from a vein in your arm
Test Preparation Needed?
None