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Cholecalciferol, vitamin D 1,25-dihydroxy.
To assess vitamin D levels toward diagnosing disorders such as vitamin toxicity, malabsorption, and vitamin deficiency.
Serum collected in a red-top tube. Plasma collected in a green-top (heparin) tube is also acceptable.
(Method: High-performance liquid chromatography)
|Form||Conventional Units||SI Units (Conventional Units × 2.496)|
|Vitamin D 25-hydroxy|
|Deficient||Less than 20 ng/mL||Less than 49.9 nmol/L|
|Insufficient||20–30 ng/mL||49.9–74.9 nmol/L|
|Optimal||30–100 ng/mL||74.9–249.6 nmol/L|
|Possible Toxicity||Greater than 150 ng/mL||Greater than 374.4 nmol/L|
|Conventional Units||SI Units (Conventional Units × 2.6)|
|Vitamin D 1,25-dihydroxy||18–72 pg/mL||47–187 pmol/L|
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Bladh, Mickey Lynn., and Anne M. Van Leeuwen. "Vitamin D." Davis's Lab & Diagnostic Tests, 7th ed., F.A. Davis Company, 2017. Nursing Central, nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425147/all/Vitamin_D.
Bladh ML, Van Leeuwen AM. Vitamin D. Davis's Lab & Diagnostic Tests. 7th ed. F.A. Davis Company; 2017. https://nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425147/all/Vitamin_D. Accessed April 23, 2019.
Bladh, M. L., & Van Leeuwen, A. M. (2017). Vitamin D. In Davis's Lab & Diagnostic Tests. Available from https://nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425147/all/Vitamin_D
Bladh ML, Van Leeuwen AM. Vitamin D [Internet]. In: Davis's Lab & Diagnostic Tests. F.A. Davis Company; 2017. [cited 2019 April 23]. Available from: https://nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425147/all/Vitamin_D.
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T1 - Vitamin D
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A1 - Bladh,Mickey Lynn,
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