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Vitamin D, 25-Hydroxyvitamin D

Measurement of 25-hydroxyvitamin D levels to assess vitamin D status and bone health.

Details:

Vitamin D, 25-Hydroxyvitamin D test measures the level of vitamin D in the blood to help identify vitamin D deficiency or excess.

What It Measures

  • 25-Hydroxyvitamin D (25-OH Vitamin D)
  • This is the major circulating form of vitamin D
  • Reflects vitamin D from dietary sources and sun exposure

Clinical Applications

  • Diagnose vitamin D deficiency
  • Monitor vitamin D supplementation
  • Evaluate bone health disorders
  • Assess parathyroid gland function
  • Evaluate calcium metabolism disorders

Reference Ranges (General)

  • Deficiency: Less than 20 ng/mL
  • Insufficiency: 20-29 ng/mL
  • Sufficiency: 30-100 ng/mL
  • Toxicity: Greater than 150 ng/mL

Sample Type

  • Whole Blood
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