Test Directory

Vitamin D, 25 hydroxy

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Updated Test Information:

Test Description
Vitamin D, 25 hydroxy
Synonym(s)
25-hydroxycalciferol
Test ID
VDOH
Specimen Type
Serum
Alternate Specimen Type
Red, Li‑heparin, K2‑EDTA and K3‑EDTA plasma
Specimen Requirements
SST
Stability
Stable for 8 hours at 20‑25 °C, 4 days at 2‑8 °C, 24 weeks at ‑20 °C (± 5 °C). Freeze only once.
Methodology
Electrochemiluminescence immunoassay ECLIA
Estimated TAT
0-2 days
Testing Schedule
Monday-Saturday
CPT Code(s)
82306
Minimum Sample Volume
1 mL
Pediatric Min. Volume (if applicable)
500 uL
Reference Range
≥30 ng/mL
Performing Lab
Incyte Diagnostics
LOINC Code(s)
1989-3