40765040

40765040 - 25-Hydroxyvitamin D3+25-Hydroxyvitamin D2 [Mass/volume] in Serum or Plasma

Used for:

• Diagnosis of vitamin D deficiency
• Differential diagnosis of causes of rickets and osteomalacia
• Monitoring vitamin D replacement therapy
• Diagnosis of hypervitaminosis D 1

8842

In the OMOP vocabulary 8842 is a Standard Concept that represents the unit nanogram per milliliter (ng/mL)

Plausible Low Value

5

Plausible High Value

1000.00

Rationale

Less than 10 ng/mL indicates a severe deficiency, while levels > 150 ng/mL indicate toxicity 1. Values up to 400 ng/mL have been observed in the literature as well 2. The literature, combined with a data-driven approach to empirically establish possible low and high values, leads us to choose 5 and 1000.