Immunoglobulin A
0050340
Ordering Recommendation
 
Mnemonic
IGA
Methodology
Quantitative Nephelometry
Performed
Sun-Sat
Reported
Within 24 hours  
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
Specimen Required
Patient Preparation
  
Collect
Serum separator tube or green (sodium or lithium heparin).  
Specimen Preparation
Separate serum or plasma from cells ASAP or within 2 hours of collection. Transfer 1 mL serum or plasma to an ARUP Standard Transport Tube. (Min: 0.4 mL)  
Storage/Transport Temperature
Refrigerated.  
Unacceptable Conditions
Hemolyzed specimens.  
Remarks
  
Stability
After separation from cells: Ambient: 8 hours; Refrigerated: 8 days; Frozen: 1 year (if frozen within 24 hours)  
Reference Interval
 
 
0-​30 days: 1-​7 mg/dL
1 month: 1-​53 mg/dL
2 months: 3-​47 mg/dL
3 months: 5-​46 mg/dL
4 months: 4-​72 mg/dL
5 months: 8-​83 mg/dL
6 months: 8-​67 mg/dL
7-​8 months: 11-​89 mg/dL
9-​11 months: 16-​83 mg/dL
1 year: 14-​105 mg/dL
2 years: 14-​122 mg/dL
3 years: 22-​157 mg/dL
4 years: 25-​152 mg/dL
5-​7 years: 33-​200 mg/dL
8-​9 years: 45-​234 mg/dL
10 years and older: 68-​378 mg/dL
Interpretive Data
 
Note
 
CPT Code(s)
82784
Components
Component Test Code*Component Chart NameLOINC
0050340Immunoglobulin A2458-8
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Aliases
  • IgA
  • IgA, Serum
  • Immunoglobulin A