255 - Vitamin D, 25-OH, LC/MS/MS (D2, D3, Total) Test
$170.00
Vitamin D, 25-OH, LC/MS/MS (D2, D3, Total)
The Vitamin D, 25-OH, LC/MS/MS test provides a highly accurate measurement of vitamin D status using liquid chromatography–tandem mass spectrometry (LC/MS/MS). This method separately measures vitamin D2 (ergocalciferol) and vitamin D3 (cholecalciferol), as well as total 25-hydroxyvitamin D.
This test is commonly used when detailed vitamin D assessment is needed, such as monitoring supplementation, evaluating absorption, or distinguishing between dietary and supplemental vitamin D sources. The LC/MS/MS method offers greater specificity and precision compared to standard immunoassays.
The test reports 3 values:
Vitamin D2 (25-OH D2): Reflects vitamin D from certain supplements or fortified foods
Vitamin D3 (25-OH D3): Reflects vitamin D produced by the skin and obtained from most supplements
Total 25-OH Vitamin D: Overall vitamin D status
Vitamin D, 25-OH, LC/MS/MS (D2, D3, Total)
The Vitamin D, 25-OH, LC/MS/MS test provides a highly accurate measurement of vitamin D status using liquid chromatography–tandem mass spectrometry (LC/MS/MS). This method separately measures vitamin D2 (ergocalciferol) and vitamin D3 (cholecalciferol), as well as total 25-hydroxyvitamin D.
This test is commonly used when detailed vitamin D assessment is needed, such as monitoring supplementation, evaluating absorption, or distinguishing between dietary and supplemental vitamin D sources. The LC/MS/MS method offers greater specificity and precision compared to standard immunoassays.
The test reports 3 values:
Vitamin D2 (25-OH D2): Reflects vitamin D from certain supplements or fortified foods
Vitamin D3 (25-OH D3): Reflects vitamin D produced by the skin and obtained from most supplements
Total 25-OH Vitamin D: Overall vitamin D status