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Epic Code LAB67 Vitamin B12 Blood Level

Test Name Alias

Vitamin B12 Blood Level | Cobalamin | 6752

Interface Order Alias

10068

Collection Instructions

Specimen Collection: Blood

 

Container(s): 5.0 mL Gold Top (Serum Separator-SST Gel) or 4.5 mL Mint Green Top (Lithium Heparin Gel)

  • Preferred Volume to Collect: 5.0 mL
  • Minimum Volume to Collect: 2.0 mL
  • Neonate (NICU) Volume to Collect: at least 1 full microtainer
  • Capillary collect ok? Yes
  • Microtainer acceptable: Yes

 

Collection Instructions:

  • Fasting specimen preferred, but not required
  • Gently invert 8 - 10 times to mix clot activator with blood.
  • Avoid prolonged exposure to light (minimal UV light exposure)
  • Specimen should be processed within 2 hours – See Processing Instructions.

 

Processing Instructions (Laboratory, Outpatient or Off-site collection)

  • Processed Specimen: Serum or Plasma
  • Centrifuge/Spin: Yes
  • Aliquot: Yes
  • Processing Instructions:
    • Gold top serum is preferred specimen type
    • Gold/Serum: Allow blood to clot for 30 minutes in a vertical position and centrifuge within 2 hours.
    • Green/Plasma: Centrifuge after collection
    • Minimum volume: 1.0 mL serum or plasma
  • Transport Temperature: Refrigerated

 

Specimen Stability

Ambient: 2 hours

Refrigerate: 48 hours

Frozen: aliquot serum for longer storage

Laboratory Retention: 72 hours

Test Frequency

Available daily, usual TAT 1 day.

Reference Range

Vitamin B12 Lvl
0 up to 1 Month: 525 – 1100 pg/mL
1 Month and up: 180 – 900 pg/mL

Performing Department

Chemistry

Performing Department Laboratory Location

Corewell Health Reference Laboratory, Grand Rapids, MI

Corewell Health Big Rapids Laboratory, Big Rapids, MI
Corewell Health Gerber Laboratory, Fremont, MI
Corewell Health Ludington Laboratory, Ludington, MI
Corewell Health Pennock Laboratory, Hastings, MI
Corewell Health Reed City Laboratory, Reed City, MI
Corewell Health Greenville Laboratory, Greenville, MI

Methodology

Electrochemiluminescence Immunoassay (ECLIA)

CPT

82607

CDM Code

3018260701

Epic Test ID

1230101286

LOINC

Vitamin B12 Lvl: 2132-9

Mayo Access Code

SHO10068

Reviewed Date

3/7/2024

Updated Date

12/28/2023 - Collection Instructions