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: Not required. Aliquot serum for frozen storage.
- 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
Corewell Health Lakeland St. Joseph Laboratory, St. Joseph, 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