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Test ID: 2425D    
25-Hydroxyvitamin D:24,25-Dihydroxyvitamin D Ratio, Serum

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Useful For Suggests clinical disorders or settings where the test may be helpful

As a screening test for inactivating CYP24A1 mutations in patients with symptoms, signs, or biochemical findings of parathyroid hormone (PTH)-independent hypercalcemia or hypercalciuria

Profile Information A profile is a group of laboratory tests that are ordered and performed together under a single Mayo Test ID. Profile information lists the test performed, inclusive of the test fee, when a profile is ordered and includes reporting names and individual availability.

Test IDReporting NameAvailable SeparatelyAlways Performed
2425R24,25 Dihydroxy Vitamin DNoYes
25HDN25-Hydroxyvitamin D2 and D3, SYesYes

Method Name A short description of the method used to perform the test

Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)

Portions of this test are covered by patent(s) held by Quest Diagnostics

NY State Available Indicates the status of NY State approval and if the test is orderable for NY State clients.

Yes

Reporting Name Lists a shorter or abbreviated version of the Published Name for a test

25HDN:24,25 Dihydroxy VitD Ratio, S

Aliases Lists additional common names for a test, as an aid in searching

2425D
2425R
2425
24,25-Dihydroxyvitamin D
Hydroxycalcifediol
Hydroxycalcidiol
P450CC24
Cytochrome P450 Family 24
Cytochrome P450 Subfamily XXIV
Vitamin D 24-Hydroxylase
25-Hydroxyvitamin D 24-Hydroxylase
Dihydrocholesterol
2425OHD
CYP24A1
Calciferol
Ergocalciferol
Calcidiol
Cholecalciferol
Colecalciferol
Vitamin D Assay
CYP24