1,25 Di Hydroxy Cholecalciferol, Plasum (Plasma / Serum)

Diagnostic Use

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.

Department

Endo/Steroid Lab

Delphic Registration Code

V125

Synonyms

1,25 Di Hydroxy Vitamin D
1,25 OH Vitamin D

Turnaround Time

4 weeks

Test Code

3755

Specimen Type

• Serum

Specimen Requirements

Tube/Container Type:

Preferred

• Serum (Red Cap)

Acceptable

• Serum (Red Cap)
• SST II (Gold Cap)

Preferred Sample Volume (ml)

2

No of Samples Required

1

Additional Specimen Information

SERUM ONLY
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.

Aliquot Instructions

Sample Type

• Serum

Minimum Volume (ml)

1

Transport to Lab

Frozen
If overnight - Frozen

Additional Referral/Aliquot Information

Aliquot Instructions: >1 mL Serum in a dark tube. Freezer

Reference Intervals

60-208 pmol/L. Reference interval is under review.

Test Method

Diasorin Australia Chemiluminescent Immunoassay.

Non-Funded Test Cost

$561.11 (Exclusive of GST)

Billing Code

3755

All requests are vetted due to cost.
Analysed in Australia via Auckland Labplus Laboratory.

Contact Information

Enquiry Form