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HelpVitamin D, 25-Hydroxy
Collection Requirements
Source: blood
Container(s):
- Preferred: Red
- Acceptable: Red gel
Volume: 2 mL in vacutainer
Turn Around Time
3-7 days
Testing performed daily Monday - Friday
Must be received in the Toxicology lab by 7:00 a.m. to be included in the batch
Availability
Routine
Includes
Vitamin D2, 25-Hydroxy and Vitamin D3, 25-Hydroxy
Lab Processing Instructions
Specimen: serum
Spin, separate, and refrigerate
Performing Laboratory
Adele Hall
Adele Hall Lab Section
Biochemical Genetics
Instrumentation/Methodology
Tandem Mass Spectrometry
Reference Ranges
| Reference Range (ng/mL) | Interpretation |
|---|---|
| <20 | Deficiency |
| 20 - 29 | Insufficiency |
| 30 - 80 | Optimal |
| >80 | Possible toxicity |
CPT
82306