Immunoglobulin G Subclasses (IgG 1, 2, 3, 4)

Synonyms

  • GAMMAGLOBULIN
  • IGG 1, 2, 3, AND 4
  • IGG SUBSETS
  • IGG1,2,3,4
  • LAB1001

Cerner Name

IgG Subsets

Clinical Info

IgG is the most abundant serum immunoglobulin in healthy individuals and is comprised of 4 subclasses (i.e., IgG1, IgG2, IgG3 and IgG4). Of total IgG, approximately 65% is IgG1, 25% is IgG2, 6% is IgG3, and 4% is IgG4. Measurement of IgG subclasses is useful when evaluating patients with suspected humoral immunodeficiency.

Specimen Sources

Blood, Arterial Blood, Capillary Blood, Central Line Blood, Venous

Specimen Types

Blood

Specimen Volume

3 mL serum ( 1.8 mL serum min)

Container

Gold Top Tube

Collection Instructions

Separate serum from cells within 30 min to 1 hour after collection.

Transport Instructions

Refrigerated

Specimen Stability

2 Days Room Temperature
8 Days Refrigerated
6 Months Frozen

Methodology

Quantitative Immunoturbidimetry
 
Test Includes Quantitation of IgG1, IgG2, IgG3, IgG4, total IgG

Days Performed

M - F

Performing Laboratories

Northwell Health Laboratories

CPT

82784
82787(x4)             

PDM

5904190

Results
Component Name Base Name Common Name External Name
IGG 1 IGG1 IGG 1 IgG Subset 1
IGG 2 IGG2 IGG 2 IgG Subset 2
IGG 3 IGG3 IGG 3 IgG Subset 3
IGG 4 IGG4 IGG 4 IgG Subset 4
IGG SUBSET TOTAL IGGT TOTALIGG IgG Subset Total IgG
IMMUNOGLOBULIN G IMMUNOG IMMUNOGLOBULIN G Immunoglobulin G
IMMUNOGLOBULIN G IMMUNOG IMMUNOGLOBULIN G Immunoglobulin G

Result Interpretation

Forms
Immunology LAB1001 build edit