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HelpTest Code FAB12 Folate/Vitamin B12
Laboratory Code
LAB3040650
Specimen Requirements
Specimen Type: Serum
Container/Tube: Gold Top (SSTII)
Volume: 5.0 mL
Minimum Volume: 0.5 mL serum
Collection Instructions: For non-inhouse samples, please protect sample from light with aluminium foil and send to laboratory immediately.
Specimen Stability
| Specimen Type | Serum |
|---|---|
| Ambient | Not available |
| Refrigerate | 7 days |
| Frozen | 30 days |
Methodology
Chemiluminescent Immunoassay
Days and Times Performed
24 hrs, TAT 1 day
Specimen Condition
| Haemolysis | Alert/Reject |
|---|---|
| Icterus | OK |
| Lipaemia | OK |
| Others | Not applicable |
Reference Interval
See individual test listings for reference interval.
Testing Laboratory
National University Hospital
Clinical Chemistry, 67724346
Useful For
Aids in detection of vitamin B12 and folate deficiency in individuals with macrocytic or unexplained anemia, or unexplained neurologic disease.
Service Code
31730
LOINC Code Information
See individual test listings for LOINC code information.
Alias
Cyanocobalamin
Cobalamin Deficiency
Folic Acid
Pteroylglutamic Acid
Update
Last updated 11/03/2025