25-Hydroxyvitamin D2 and D3 by Tandem Mass Spectrometry, Serum and Plasma

Casandra

Casandra Test Code AR26055Version 1 (DRAFT)

Performing Lab

Lab ARUP LaboratoriesLab Test ID 2002348CPT Code 82306

25-Hydroxyvitamin D2 and D3 by Tandem Mass Spectrometry, Serum and Plasma

Also known as: VITD2D3TMS

Clinical Use

Order Test

Use

This test measures the levels of 25-hydroxyvitamin D2 and 25-hydroxyvitamin D3 in the serum or plasma, which are essential for understanding the vitamin D status of a patient. It is particularly useful for assessing individuals with vitamin D insufficiency or deficiency who do not respond to supplementation. It is not the preferred test for initial evaluation of vitamin D insufficiency; a different test is recommended for that purpose. The test provides separate values for both Vitamin D2 and D3, in addition to the total concentration.

Special Instructions

ARUP is unable to provide reliable results for specimens from infants less than one year of age since a highly specialized test methodology is required. ARUP will refer all infant specimens to a laboratory that can perform the necessary methodology. The test is performed from Sunday to Saturday and can be reported within 1-5 days.

Limitations

This test has specific limitations, such as the inability to provide reliable results for infant specimens less than one year of age, hence they are referred to another laboratory. The test is developed and characterized by ARUP Laboratories and has not been cleared or approved by the US Food and Drug Administration. Potential users should note that it is intended for clinical purposes and performed in a CLIA certified laboratory.

Test Details

New York Approved