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HelpTest Code FV125 Calcitriol 1,25-Dihydroxyvitamin D
Specimen Required
Collection Container/Tube:
Preferred: Red top
Acceptable: Serum gel
Submission Container/Tube: Plastic vial
Specimen Volume: 0.6 mL
Collection Instructions:
1. Collect blood in a red-top tube.
2. Allow blood to clot (30 minutes) at room temperature.
3. Centrifuge and aliquot serum to a plastic vial.
4. Ship ambient.
Method Name
Chromatography/Mass Spectrometry
Reporting Name
CALCITRIOL 1,25 diOH VitDSpecimen Type
SerumSpecimen Minimum Volume
0.25 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Serum | Ambient (preferred) | 28 days | |
| Frozen | 28 days | ||
| Refrigerated | 28 days |
Reject Due To
| Gross hemolysis | Reject |
| Gross lipemia | Reject |
| Gross icterus | Reject |
| Plasma | Reject |
Reference Values
Vitamin D, 1,25 (OH) 2, Total pg/mL
<1 year: Not established
1-9 years: 31-87
10-13 years: 30-83
14-17 years: 19-83
≥18 years: 18-72
Vitamin D3, 1, 25 (OH) 2 indicates both endogenous production and supplementation. Vitamin D2, 1, 25 (OH) 2 is an indicator of exogenous sources, such as diet or supplementation. Interpretation and therapy are based on measurement of Vitamin D, 1, 25 (OH) 2, Total.
Vitamin D3, 1, 25 (OH) 2 pg/mL
No Reference Range
Vitamin D2, 1, 25 (OH) 2 pg/mL
No Reference Range
Day(s) Performed
Sunday through Monday
Report Available
4 to 7 daysPerforming Laboratory
Quest Diagnostics Nichols InstituteTest Classification
This test was developed, and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.CPT Code Information
82652