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Immunoglobulin G Subclass 1
0050571
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
IGG1
Methodology
Quantitative Nephelometry
Performed
Mon-Sat
Reported
1-3 days
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
ARUP Consult®
Disease Topics
Specimen Required
Patient Preparation
 
Collect
Serum separator tube. 
Specimen Preparation
Separate serum from cells ASAP or within 2 hours of collection. Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.45 mL) 
Storage/Transport Temperature
Refrigerated. 
Unacceptable Conditions
 
Remarks
 
Stability
After separation from cells: Ambient: 2 hours; Refrigerated: 8 days; Frozen: 6 month 
Reference Interval
Cord blood: 435-1084 mg/dL                 5-6 years: 330-1065 mg/dL
0-2 months: 218-498 mg/dL                   7-8 years: 225-1100 mg/dL
3-5 months: 143-394 mg/dL                   9-10 years: 390-1235 mg/dL
6-8 months: 190-388 mg/dL                   11-12 years: 380-1420 mg/dL
9-23 months: 288-880 mg/dL                 13-14 years: 165-1440 mg/dL
2 years: 170-950 mg/dL                          15 years and older: 240-1118 mg/dL
3-4 years: 290-1065 mg/dL
Interpretive Data


Note
Hotline History
View Hotline History
Components
Component Test Code*Component Chart NameLOINC
0050571Immunoglobulin G Subclass 12466-1
* 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
  • Class 1 IgG
  • Gamma-Globulins 1
  • IgG class 1
  • IgG Subclass 1