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Calcitriol 1,25-Dihydroxyvitamin D
Test CodeAlias/See Also
LAB536
CPT Codes
<p>82652</p>
Includes
Vitamin D3, 1,25 (OH)2
Vitamin D2, 1,25 (OH)2
Preferred Specimen
Specimen Type: Serum
Collection Container/Type
Preferred: Serum gel
Acceptable: Red top
Submission Container/Tube: Plastic vial
Specimen Volume: 1 mL
Additional Information: If any sample is submitted with less than 1.1 mL and needs to be repeated, the sample will be canceled with the comment: ""TNP-Initial testing necessitated a repeat, but there was insufficient sample to perform repeat.""
Minimum Volume
0.5 mL
Instructions
Transport Container
Transport Temperature
Specimen Stability
Room temperature: 28 days
Refrigerated: 28 days
Frozen: 28 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis • lipemia • Icteric specimens • plasma
Methodology
Chromatography/Mass Spectrometry
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by the U.S. Food and Drug Administration. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by the U.S. Food and Drug Administration. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
Setup Schedule
Report Available
3 days
Reference Range
Vitamin D, 1,25 (OH)2, Total | |
1-9 Years | 31-87 pg/mL |
10-13 Years | 30-83 pg/mL |
14-17 Years | 19-83 pg/mL |
Adult | 18-72 pg/mL |
Vitamin D3, 1,25 (OH)2 | Not available |
Vitamin D2, 1,25 (OH)2 | Not available |
Clinical Significance
Performing Laboratory
Quest Diagnostics Nichols Institute 14225 Newbrook Drive Chantilly, VA 20153
Last Updated: October 15, 2019