Vitamin D 1,25 Dihydroxy, Serum

Vitamin D 1,25 Dihydroxy

Order Code:	VD125S
Epic Lab Code:	LAB536
Order Form:	A-1a Miscellaneous Request or Epic Req

Commercial Mail-out Laboratory
6240 RCP
356-3527

Specimen:

Serum

Collection Medium:

Red top tube

Minimum:

Preferred Minimum: 2.0 mL serum
Absolute Minimum: 1.0 mL serum

Rejection Criteria:

SST or gels tubes are not appropriate (per Medical Director, Core Pathology).

Delivery Instructions:

Deliver to laboratory immediately after collection.

Analytic Time:

2 working days upon receipt at reference laboratory

Reference Range:

15 - 75 pg/mL

Interpretive Data:

Measurement of "Vitamin D (1,25-dihydroxy)" is intended for workup of complex vitamin D issues in the assessment of hypercalcemia, assessment of vitamin D in patients with renal failure, and certain malignancies. This assay is NOT intended for routine assessment of Vitamin D nutritional status (see "Vitamin D, 25-Hydroxy, Plasma").

Methodology:

Radioimmunoassay

CPT Code:

82652