May be useful for evaluating calcium metabolism in individuals with hypercalcemia or renal failure in addition to Vitamin D, 25-Hydroxy testing. Test is not appropriate for diagnosing vitamin D deficiency or insufficiency.
- Patient Preparation
- Collect
- Serum separator tube or plain red, lithium heparin or EDTA plasma.
- Specimen Preparation
- Allow serum separator or plain red tube to sit for 15-20 minutes at room temperature for proper clot formation. Centrifuge and separate serum or plasma from cells ASAP or within 2 hours of collection. Transfer 1 mL serum or plasma to an ARUP Standard Transport Tube. (Min: 0.5 mL)
Storage/Transport Temperature: Refrigerated. - Storage/Transport Temperature
- Refrigerated.
- Unacceptable Conditions
- Grossly hemolyzed or lipemic specimens.
- Remarks
- Stability
- After separation from cells: Ambient: 1 week; Refrigerated: 2 weeks; Frozen: 6 months
Component Test Code* | Component Chart Name | LOINC |
---|---|---|
0080385 | Vitamin D, 1,25-Dihydroxy | 1649-3 |
- 1,25-(OH)2-D
- 1,25-Dihydroxy Vitamin D
- 1,25-Dihydroxycholecalciferol
- 1,25-Dihydroxyvitamin D
- 1,25-Dihydroxyvitamin D3
- Calcitriol
- D, 1-25 Dihydroxy, Vitamin
- Vit D 1,25