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Pathology Departments Requesting & Reporting Blood Test Information Phlebotomy Guide Contact us
Blood Sciences

Blood Test Information

1,25-dihydroxy Vitamin D
minimum sample volume required ~ 5ml

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Test Code: VI2

Tube type: SST

Special instructions
Must be discussed with the duty biochemist before requesting.

Sent away to Norfolk & Norwich University Hospital
Contact Laboratory before requesting

Reference range
See report or contact lab

Turnaround Time
21 days

Department: Biochemistry

Clinical Application
Measurement of total vitamin D is the first-line test for investigation of suspected Vitamin D deficiency. Subsequent measurement of 1,25-dihydroxy Vitamin D may occasionally be useful e.g in investigation of pseudohypoparathyroidism and Vitamin D-dependent rickets. Prior discussion with lab essential


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