Vitamin B 12

CPT Code(s):

  • 82607

Preferred Specimen:

1 mL serum

Minimum Volume:

0.5 mL

Special Instructions:

Minimize exposure to light during sample handling and storage

Transport Container:

Serum Separator Tube (SST)

Transport Temperature Name:

Refrigerated (cold packs) Room temperature is acceptable if not ordered with Folate

Specimen Stability Components:

  • Room Temperature: 7 days
  • Refrigerated: 7 days

Testing Schedule:

Daily

Methodology:

CHEMILUMINESCENCE

Reference Range:

211-911 pg/mL

Reject Criteria:

Hemolysis

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Genesis