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HelpTest Code FAB12 Folate/Vitamin B12
Additional Codes
| Epic Ordering Code | LAB3040650 |
| NBS code | LBC00403 |
| Service code | 31730 |
Specimen Requirements
Submit the following:
| Container: |
| Yellow Top |
Processing Requirements
Allow specimen to clot for 30 mins and centrifuge within 2 hours
Specimen type: Serum
Volume: 0.5mL
Additional information: For specimens collected outside NUH, protect the tube from light with aluminium foil.
Specimen Stability
| Specimen Type | Serum |
|---|---|
| Ambient | Not available |
| Refrigerate | 7 days |
| Frozen | 30 days |
Specimen Condition
| Haemolysis | Alert/Reject |
|---|---|
| Icterus | OK |
| Lipaemia | OK |
| Others | Not applicable |
Methodology
Chemiluminescent Immunoassay
Days and Times Performed
24 hrs, TAT 1 day
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.
Update
Last updated 01/07/2026
LOINC Code Information
See individual test listings for LOINC code information.
Alias
Cyanocobalamin
Cobalamin Deficiency
Folic Acid
Pteroylglutamic Acid