Specimen Requirements
Title
Vitamin D 1,25 Dihydroxy (Calcitriol)
Specimen Requirement
Collect SST/0.5 mL serum, after 30 minutes of clotting, promptly centrifuge and send.
Alternate Collection:
Collect red top, green top (heparin) or lavender EDTA, centrifuge and transfer 0.5 mL serum/plasma to a screw top plastic vial, indicate sample type on tube and send.
Methodology
Immunochemiluminometric assay (ICMA)
Stability
Room temp: 7 days, Refrigerated: 14 days, Frozen: 14 days
Reference Range
The reference range is determined by the performing laboratory and will show on the report.
Turnaround
2-4 days
Clinical Use
Aid in the diagnosis of primary hyperparathyroidism, hypoparathyroidism, pseudohypoparathyroidism, renal osteodystrophy, vitamin-D resistant rickets.
Test Code
1DVD