ARUP's Laboratory Test Directory

Immunoglobulin G Subclass 2 : 0050572

Mnemonic: IGG2

Methodology: Quantitative Nephelometry
Performed: Mon-Sat
Reported: 1-3 days
Specimen Required: 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: 0.45 mL)

Storage/Transport Temperature: Refrigerated.

Stability (collection to initiation of testing): After separation from cells: Ambient: 2 hours; Refrigerated: 8 days; Frozen: 6 months
Reference Interval:
Cord blood: 143-453 mg/dL                  5-6 years: 57-345 mg/dL
0-2 months: 40-167 mg/dL                    7-8 years: 42-375 mg/dL
3-5 months: 23-147 mg/dL                    9-10 years: 61-430 mg/dL
6-8 months: 37-60 mg/dL                      11-12 years: 73-455 mg/dL
9-23 months: 30-327 mg/dL                  13-14 years: 71-460 mg/dL
2 years: 22-440 mg/dL                            15 years and older: 124-549 mg/dL
3-4 years: 28-315 mg/dL
CPT Code(s): 82787
Cross References: IgG Subclass 2 (Immunoglobulin G Subclass 2)