B12 FOL
Vitamin B12 and Folate, Serum
EPIC Test Procedure Code: LAB2011
Performing Lab:
Saint Luke's Regional Laboratories
Container Type:
Serum gel tube
Specimen Type:
Serum
Preferred Volume:
2 mL
Minimum Volume:
1 mL
Store and Transport:
Room temperature
Limitations:
Precautions: Radioisotopes (either diagnostic or therapeutic), heparin, ascorbic acid, fluoride, methotrexate, or other folic acid antagonists may interfere with vitamin B12 determination.
CPT Codes:
82607 - B12 (EAP 30010600)
82746 - Folate (EAP 30010640)
Test Schedule:
Monday through Sunday
Reference Ranges:
Vitamin B12:
211 - 911
pg/mL
Folate:
Deficient:
< 0.56 - 3.37
ng/mL
Indeterminate:
3.38 - 5.38
ng/mL
Normal:
> 5.38
ng/mL
Notes:
High serum biotin levels may interfere with this assay and result in a false elevation in values. A repeat test 24 – 48 hours after stopping oral biotin may be requested.