This is not a valid measure of Vitamin D Stores.
It is the active metabolite of Vitamin D, which may be elevated in patients with granulomatous disease and hypercalcaemia. Apart from the rare indication in patients with hypercalcaemia of unknown cause and a suppressed parathyroid hormone there is little or no clinical reason to request this test.
For further information contact a Chemical Pathologist or Endocrinologist.
1,25 Di Hydroxy Vitamin D
1,25 OH Vitamin D
Specimen Collection Protocols - Serum 1,25 dihydroxy vitamin D3 is stable for 3 days at room temperature. If, however, transport time is greater than 24 hours send frozen.
If overnight - Frozen
Aliquot Instructions: >1 mL Serum in a dark tube. Freezer
60-208 pmol/L. Reference interval is under review.
Diasorin Australia Chemiluminescent Immunoassay.
$561.11 (Exclusive of GST)
All requests are vetted due to cost.
Analysed in Australia via Auckland Labplus Laboratory.
"*" indicates required fields