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HelpTest Code FOL Folate
Additional Codes
| Epic Ordering Code | LAB69 |
| NBS code | LBC04342 |
| Service code | 31731 |
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
| Age | (nmol/L) |
|---|---|
| 5 days – < 1 yr | 23.9 – 45.3 |
| 1 – 2 yrs | 8.7 – 45.3 |
| 3 – 5 yrs | 27.0 – 45.3 |
| 6 – 7 yrs | 29.7 – 45.3 |
| 8 – 11 yrs | 25.9 – 45.3 |
| 12 – 13 yrs | 27.0 – 45.3 |
| 14 – 18 yrs | 18.0 – 45.3 |
| ≥ 19 yrs | 7.0 – 46.4 |
Testing Laboratory
National University Hospital
Clinical Chemistry, 67724346
Useful For
Detection of folate deficiency and monitoring of therapy.
Update
Last updated 01/07/2026
LOINC Code Information
14732-2
Alias
Folic Acid
Pteroylglutamic Acid