Specimen Requirements

Title

25-HYDROXY VITAMIN D

Specimen Requirement

1 SST/2.0 mL serum. After 30 minutes of clotting, promptly centrifuge and refrigerate.

Methodology

Stability

Room Temperature Unacceptable, Refrigerated 5 days

Reference Range

By Report*

Turnaround

1-2 Days

Clinical Use

Rule out Vitamin D deficiency as cause of bone disease; differential diagnosis of hypercalcemia

Test Code

VITDG