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Microbiology Sources | Microbiology Tests | Anatomic Pathology | Cytopathology

Vitamin D, 1, 25 DiHydroxy

Source Blood
Mnemonic VD125
Specimen Requirements

1 x 3.5 mL gold top SST tube

1.5 mL serum

Minimum Whole Blood Volumes for Micro-Collections using Microtainers
Specimen Handling PSC & RRL:
Centrifuge, pour off, and transport serum to DSC.

Extra-regional:
Centrifuge, pour off, and freeze serum prior to transport to DSC.

DSC:
Freeze specimens upon receipt in lab; ensure frozen specimens do not thaw.
Additional Information
Testing Location Immunochemistry
Testing Frequency Once a week
Alternate Name(s) Calcitriol, 1,25 DiHydroxy Vitamin D
Reference Interval 55 - 190 pmol/L