Vitamin D, 1, 25-Dihydroxy V125
| Method(s) | Quantitative Chemiluminescent Immunoassay |
|---|---|
| Specimen Required | |
| Collect | One 5 mL gold (SST) top tube. Also acceptable: lavender (EDTA) top, plasma, lithium heparin or plain red top tubes. |
| Transport | 1 mL serum or plasma at 2-8°C. (Min: 0.5 mL) |
| Stability | After separation from cells: Ambient: 1 week; Refrigerated: 2 weeks; Frozen: 6 months |
| Schedule | Daily |
| Billing Code | 5010068 |
| CPTCode | 82652 |
| Notes | Serum 1,25(OH)2D is not useful for assessing vitamin D nutritional status. See Vitamin D, 25-Hydroxy (Calciferol). |
| Preferred Specimen Collection Device(s) | |
| Reference Interval | |
|
19.9-79.3 pg/mL |
|
