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Vitamin D, 25-Hydroxy, Total, Immunoassay

Measurement of serum 25-OH vitamin D concentrations provide a good index of circulating vitamin D activity in patients not suffering from renal disease. Lower than normal 25-OH vitamin D levels can result from a dietary deficiency, poor absorption of the vitamin or impaired metabolism of the sterol in the liver. A 25-OH vitamin D deficiency can lead to bone diseases such as rickets and osteomalacia. Above normal levels can lead to hypercalcemia

$64.00Price for members $32.00

Collection method: Blood
Preparation: Fasting is preferred, but not required. Please do not exercise prior to testing. It is best that your blood is taken in a rested state.

How It Works

STEP 1

Order your tests online

  • Easy and fast checkout
STEP 2

Visit a local Quest Diagnostics lab

  • No follow-up required
  • Results automatically uploaded to SelfDecode
STEP 3

Get your results and insights online

  • Find out if your levels are in the optimal range
  • Get easy-to-understand insights about your results
  • Track your levels over time
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