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HelpTest Code IGA Immunoglobulin A
Specimen Requirements
Specimen Type: Serum
Container/Tube: Gold Top (SSTII)
Volume: 5.0mL / 6.0mL
Minimum Volume: 0.5mL serum
Collection Instructions: Allow specimen to clot for 30 minutes and centrifuge within 2 hours
Sample Stability
** Preferred temperatures for storage prior to and during shipping to NUH **
| Specimen Type: | Serum |
|---|---|
| Ambient: | 7 days |
| Refrigerate: | 7 days |
| Frozen: | 6 months |
Reference Interval
| Age | Male | Female |
|---|---|---|
| 0 - < 1yr | 0.0-0.3 g/L | |
| 1 - 2yrs | 0.0-0.9 g/L | |
| 3 - 5 yrs | 0.3-1.5 g/L | |
| 6 - 13 yrs | 0.5-2.2 g/L | |
| 14 - 18 yrs | 0.5-2.9 g/L | |
| 19 - 59 yrs | 0.6-4.8 g/L | 0.6-4.2 g/L |
| ≥ 60 yrs | 1.0-6.5 g/L | 0.7-5.2 g/L |
Days and Times Performed
24 hours, TAT 1 day
Methodology
Immunoturbidimetric
Service Code
31612
Update
Last updated 26/02/2022
Unacceptable Condition
| Haemolysis | NA |
|---|---|
| Icterus | NA |
| Lipaemic | NA |
| Others | NA |
Testing Laboratory
National University Hospital
Clinical Chemistry, 67724346
Useful For
Evaluation of humoral immunity. Increased level is seen in IgA myeloma, liver chirrhosis and chronic infection. Decreased level is seen in malabsorption, hereditary telangectasia, hereditary and acquired immunodeficiency states.