A B C D E F G H I J K L M N O P Q R S T U V W X Y Z #

VITAMIN D, 25OH (D2 D3), ALVERNO VTD25

Message
Note: This test is an alternative screening test for Vitamin D deficiency and monitoring response in patients that are not responding to supplementation. 


Test Code
LAB7993


CPT Codes
82306

Preferred Specimen
1 Gold tube (SST)


Patient Preparation
None

Minimum Volume
0.5 mL (1 mL optimal)


Other Acceptable Specimens
1 Green tube (Lithium Heparin)


OR



Instructions
Allow serum samples to clot at room temperature. Centrifuge for compelte separation of serum or plasma from red cells. 


Transport Container
Transfer tube


Transport Temperature
Refrigerate


Specimen Stability
2-8ºC up to 7 days


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
  • Gross hemolysis
  • Lipemia
  • Gross icterus


Methodology
Liquid Chromatography Tandem Mass Spectrometry (LC/MS/MS)

Setup Schedule
M, W, F only

Batched; Day shift, STAT test not available


Reference Range
Vitamin D 25-OH, Total

30 - 100 ng/mL

Values for Vitamin D 25-OH D3 and D2 not established


Clinical Significance
Vitamin D non-response to therapy (25-OH Vit D2, D3) is used to evaluate the non-response to supplemental therapy. Only order after 25-Hydroxy Vitamin D levels have been tested.


Performing Laboratory
Alverno Central Lab



The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.