Immunoglobulin G Subclass 4 : ARUP Lab Tests

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Immunoglobulin G Subclass 4 : 0050576

Mnemonic: IGG4

Methodology:	Nephelometry
Performed:	Mon-Sat
Reported:	1-3 days
Specimen Required:	Collect: One 4 mL serum separator tube or green (sodium or lithium heparin). Transport: 1 mL serum or plasma at 2-8°C. (Min: 0.45 mL) Submit specimen in an ARUP Standard Transport Tube. Pediatric Collection/Transport: 0.45 mL serum or plasma at 2-8°C. Remarks: Separate serum or plasma from cells ASAP. Stability: After separation from cells: Ambient: 2 days; Refrigerated: 2 weeks; Frozen: 6 months

Reference Interval:
Cord blood: 1-47 mg/dL                        5-6 years: 2-116 mg/dL
0-2 months: 1-33 mg/dL                        7-8 years: 0-138 mg/dL
3-5 months: 1-14 mg/dL                        9-10 years: 1-95 mg/dL
6-8 months: 1-16 mg/dL                        11-12 years: 1-153 mg/dL
9-23 months: 1-65 mg/dL                      13-14 years: 2-143 mg/dL
2 years: 0-120 mg/dL                              15 years and older: 7-89 mg/dL
3-4 years: 0-90 mg/dL

CPT Code(s):

82787

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