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HelpTest Code RUBG Rubella IgG Antibody
Additional Codes
| Epic Ordering Code | LAB496 |
| NBS code | LBC13379 |
| Service code | 31853 |
Specimen Requirements
Submit only one of the following:
| Preferred: | Acceptable: |
| Yellow Top | Red Top |
Processing Requirements
Allow specimen to clot for 30 mins and centrifuge within 2 hours
Specimen type: Serum
Volume: 0.5mL
Specimen Stability
| Specimen Type | Serum |
|---|---|
| Ambient | 2 days |
| Refrigerate | 2 weeks (preferred) |
| Frozen | 1 year |
Specimen Condition
| Gross Haemolysis | Reject |
|---|---|
| Icterus | OK |
| Lipaemia | OK |
| Others | Not applicable |
Methodology
Chemiluminescent Immunoassay
Days and Times Performed
Monday through Friday, TAT 1 - 3 days
Reference Interval
| Non-reactive | < 5 IU/mL |
|---|---|
| Gray Zone | 5.0 – 9.9 IU/mL |
| Reactive | ≥ 10 IU/mL, IgG antibody to Rubella may indicate a current or previous exposure/immunisation to Rubella |
Testing Laboratory
National University Hospital
Clinical Chemistry, 67724346
Useful For
A “reactive” result suggests previous exposure or immunisation to rubella
Update
Last updated 28/07/2026
LOINC Code Information
| Rubella antibody, IgG value | 5334-8 |
|---|---|
| Rubella antibody, IgG | 40667-8 |
Alias
German Measles
RUBG
RUB
Rubella Ab IgG