Vitamin D, 25-Hydroxy 25VD
| Method(s) | Chemiluminescent Immunoassay | |||||
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| Synonym | Calciferol | |||||
| Specimen Required | ||||||
| Collect | One 5 mL gold (SST) top tube. Also acceptable: plasma (EDTA or lithium heparin) |
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| Transport | 1.0 mL serum at 2-8ºC. | |||||
| Remarks | Fasting specimens are recommended but not required. | |||||
| Stability | Refrigerated: 5 days |
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| Unacceptable Conditions | Hemolyzed specimen. | |||||
| Schedule | Daily, except Sundays | |||||
| Billing Code | 1010262 | |||||
| CPTCode | 82306 | |||||
| Preferred Specimen Collection Device(s) | ||||||
| Reference Interval | ||||||
A pediatric reference range has not been established using this method. Serum 25(OH)D is the major circulating form of vitamin D and is the only metabolite necessary to assess for vitamin D deficiency or intoxication.
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