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Test Code IGA Immunoglobulin A

Additional Codes

Epic Ordering Code LAB3006
NBS code LBC06856
Service code 31612

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

Specimen Stability

Specimen Type Serum
Ambient 7 days
Refrigerate 7 days
Frozen 6 months

Specimen Condition

Haemolysis OK
Icterus OK
Gross Lipaemia Alert/Reject
Others Not applicable

Methodology

Immunoturbidimetry

Days and Times Performed

24 hrs, TAT 1 day

Reference Interval

Age Male Female
0 – < 1 yr 0.0 – 0.3 g/L
1 – 2 yrs  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

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.

Update

Last updated 17/07/2026

LOINC Code Information

2458-8

Alias

Gamma-Globulins, Quantitative
IgA single test
Immune Competence