89320:VITAMIN D, 1, 25-DIHYDROXY
Author PeaceHealth Laboratories
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| Alias Names: |
Calcitroil |
| Methodology: |
Radioimmunoassay (RIA) |
| Edit Date: |
3/29/2010 |
| Performed: |
Daily |
| Released: |
2-4 days after setup at PeaceHealth Laboratories’ reference lab. |
| CPT Code: |
82652-90 |
| Specimen Collection Details |
| Collection: |
One 7.5 mL serum separator tube (SST). Also acceptable: One 4 mL lavender top tube (EDTA). |
| Handling: |
Allow to clot, centrifuge and separate serum or plasma from cells. |
| Stability: |
72 hours ambient, 7 days refrigerated, or 6 months frozen. |
| Standard Volume: |
1 mL serum or plasma. |
| Minimum Volume: |
0.8 mL serum or plasma. |
| Transport: |
Ambient or refrigerated. |
| Comments: |
This test is primarily indicated during patient evaluation for hypercalcemia and renal failure. A normal result does not rule out Vitamin D deficiency. The recommended test for diagnosing Vitamin D deficiency is Vitamin D, 25-hydroxy (43370) |