Total reviews 422
Total reviews 422
Tests Included: 3
Est. 3-5 (business days) Turnaround
Specimen type: Blood
Quest Diagnostics Location
This test measures the bioactive form of vitamin D. It is used in the differential diagnosis of hypocalcemia and to monitor patients with renal osteodystrophy or chronic renal failure. This test is not suitable for diagnosis of vitamin D deficiency and monitoring supplementation in most patients. The 25-hydroxyvitamin D test is the recommended test for those purposes (N Engl J Med. 2007;357:266-281).
Tests Included: 3
Est. 3-5 (business days) Turnaround
Specimen type: Blood
Quest Diagnostics Location
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Please do not exercise prior to testing. It is best that your blood is taken in a rested state.
Note: Turn around times on results are an estimate and are not guaranteed. The lab may need additional time due to holidays, confirmation/repeat testing, etc. You can contact us to discuss when your results should be ready and we will contact the lab on your behalf immediately.
| 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 |
Reference ranges are established for total 1,25-dihydroxy vitamin D. Values for subcomponents D2 (derived from plant or fungal sources) and D3 (derived from human or animal sources) are provided for informational purposes only.
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