Epic order code: LAB21059501
This test is not the same as Calcitriol (1,25 di-OH Vitamin D)  (vitamin D3), which must be ordered separately.
Collect at least 1 mL blood in a red-top (preferred) or gel barrier serology tube. Centrifuge the blood and remove the serum/plasma from the cells within two hours of collection.
- Ambient or Refrigerated
Stability (collection to shipping of the samples):
- Ambient: 7 days
- Refrigerated: 14 days
- Frozen (-20°C): 14 days
This test aids in:
- The diagnosis of vitamin D deficiency and/or hypervitaminosis D;
- Potential differential diagnosis of rickets and osteomalacia; and
- Tracking vitamin D replaement therapy.
Immunochemiluminometric assay (ICMA).
1 - 3 days