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Published on April 07, 2015

Vitamin D

Tube Type = Gold Top

Tube Type

Vitamin D (25-Hydroxy), Vitamin D (25-OH)
 

See Important Comments

Test ID LAB535
EPIC ORDER
 VITAMIN D 25 HYDROXY
CPT Code(s) 82306
Group/Individual Test Individual
Laboratory Immunology
Tube Station 30
Specimen Routine: 4 mL blood/serum separator/gold top blood collection tube
micro: 1.0 mL blood/2 gold or red top microcollection devices
Stability

Availability Routine: Monday-Friday(no weekends or holidays); Not available STAT
Turnaround Time 3-5 days
Interpretation Range
Vitamin D, Total (25-OH) Interpretation Ranges:
<10 ng/mL (Severe deficiency)
10-19 ng/mL (Mild to moderate deficiency)
20-50 ng/mL (Optimum levels)*
51-80 ng/mL (Increased risk of hypercalciuria)
>80 ng/mL(Toxicity possible)
*Optimum levels in the healthy population; patients with bone disease may benefit from higher levels within this range.
Adapted from 2011 IOM report.
Comments
Methodology: Diasorin Liason XL.  All specimens are tested by a quantitative, chemiluminescent immunoassay for the detection of total Vitamin D(25-OH)
 

Reviewed by J. Carr on December 07, 2023

UNC Hospitals
McLendon Clinical Laboratories
101 Manning Drive
Chapel Hill, NC 27514