Immunoglobulin A Subclasses (1 and 2)

0093149
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Example Reports
Abnormal
Normal
Ordering Recommendation

Aid in diagnosis of immunodeficiencies. Secondary test in suspected immunoglobulin deficiency. Do not order before IgG, IgA, and IgM measurements are performed. 

Mnemonic
IGA SUB
Methodology

Quantitative Nephelometry

Performed

Wed, Sat

Reported

1-5 days

New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation
Collect

Serum separator tube or green (sodium or lithium heparin).

Specimen Preparation

Transfer 2 mL serum to an ARUP Standard Transport Tube. (Min: 0.45 mL)

Storage/Transport Temperature

Frozen.

Unacceptable Conditions
Remarks
Stability

After separation from cells: Ambient: 2 hours; Refrigerated: 8 days; Frozen: 6 months

Reference Interval
Test Number
 Components
 Reference Interval
0050340 Immunoglobulin A Effective February 16, 2016
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: 68-408 mg/dL

  Immunoglobulin A Subclass 1 0-11 months: 1-115 mg/dL
1 year: 3-120 mg/dL
2 years: 7-132 mg/dL
3 years: 11-143 mg/dL
4-7 years: 23-175 mg/dL
8-11 years: 33-204 mg/dL
12-18 years: 47-249 mg/dL
Adult: 60-294 mg/dL
  Immunoglobulin A Subclass 2 0-11 months: 0-19 mg/dL
1 year: 0-23 mg/dL
2 years: 1-23 mg/dL
3 years: 1-25 mg/dL
4-7 years: 2-33 mg/dL
8-11 years: 2-37 mg/dL
12-18 years: 4-50 mg/dL
Adult: 6-61 mg/dL

Interpretive Data



No compliance statements are in use for this test.

Note
Hotline History
N/A
CPT Codes

82784; 82787 x2

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Components
Component Test Code* Component Chart Name LOINC
0050340 Immunoglobulin A 2458-8
0093150 Immunoglobulin A Subclass 1 6886-6
0093151 Immunoglobulin A Subclass 2 6939-3
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
  • IgA
  • IgA 1 and 2
  • IgA Subclasses with T otal IgA (Immunoglobulin A Subclasses (1&2))
  • Immunoglobulin A
Immunoglobulin A Subclasses (1 and 2)