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Test Code Vit D Lvl Vitamin D Level

Aliases

25 OH Vitamin D Level

Patient Preparation

No special patient preparation required

Collection Method

Venous collection

Minimum Volume

  • Adult:1 mL
  • Pediatric: 0.8 mL

Container

Lt Green / Plasma Separator / Lithium Heparin

Preferred Specimen

Light Green Top (lithium heparin) plasma

Acceptable Specimens

Serum:

  • Gold Top SST
  • Red Top

Plasma:

  • Light Geen Top (lithium heparin)
  • Purple or Pink Top (K2/K3 EDTA)

 

Reference or Target Ranges

>20 ng/mL

Reportable Units

ng/mL

Critical Value

Not defined for this assay

Reasons for Rejection

 

Hemolysis Threshold 131 mg/dL
Icterus Threshold 40 mg/dL
Lipemia Threshold 500 mg/dL
Other QNS, contaminated, improperly Labeled, improper specimen type

Specimen Stability

 

Ambient 8 hours
Refrigerated (4°C to 8°C) 4 days
Frozen(-40°C to 0°C) 24 weeks

Performance Information

 

Days and Time Performed 24/7
Expected Turn Around Time Routine: 4 hours
Stat Availability No
Performing Bench UH Chemistry
Methodology/Method Description Siemens Atellica - Immunoassay

CPT Codes

82306