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HelpTest Code IGG Immunoglobulin G
Laboratory Code
LAB3004
Specimen Requirements
Specimen Type: Serum
Container/Tube: Gold Top (SSTII)
Volume: 5.0 mL
Minimum Volume: 0.5 mL serum
Collection Instructions: Allow specimen to clot for 30 mins and centrifuge within 2 hrs.
Specimen Stability
| Specimen Type | Serum |
|---|---|
| Ambient | 7 days |
| Refrigerate | 7 days |
| Frozen | 6 months |
Methodology
Immunoturbidimetry
Days and Times Performed
24 hrs, TAT 1 day
Specimen Condition
| Haemolysis | OK |
|---|---|
| Icterus | OK |
| Gross Lipaemia | Alert/Reject |
| Others | Not applicable |
Reference Interval
| Age | Male | Female |
|---|---|---|
| 0 – 14 days | 3.2 – 14.0 g/L | |
| 15 days – 1 yr | 1.1 – 7.0 g/L | |
| 1 – 3 yrs | 3.2 – 11.5 g/L | |
| 4 – 9 yrs | 5.4 – 13.6 g/L | |
| 10 – 18 yrs | 6.6 – 15.3 g/L | |
| 19 – 79 yrs | 5.4 – 18.2 g/L | 5.5 – 16.3 g/L |
Testing Laboratory
National University Hospital
Clinical Chemistry, 67724346
Useful For
Detecting or monitoring of monoclonal gammopathies and immune deficiencies.
Service Code
31613
LOINC Code Information
2465-3
Alias
Gamma-Globulins, Quantitative
IgG single test
Immune Competence
Update
Last updated 11/03/2025