Vitamin D is a fat soluble vitamin that contributes to the maintenance of normal levels of calcium and phosphorus in the bloodstream.


... Why get tested?
To investigate a problem related to bone metabolism or parathyroid function

When to get tested?
If you have an abnormal calcium, phosphorus, and/or parathyroid hormone level or if you have evidence of bone disease or bone weakness

Sample required?
A blood sample drawn from a vein in your arm
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