IMMUNOGLOBULIN G (IgG)
Specimen Required
Alternate Specimen
Methodology
Stability
Reference Range
Performed
| Draw blood in a SST. Centrifuge, separate and send 1.0 mL serum (0.5 mL minimum) refrigerated in a screw-capped plastic vial. |
Alternate Specimen
| Plasma: heparin (sodium or lithium), EDTA | |||
| Serum: Red-top |
Methodology
| Nephelometry |
Stability
| Room Temperature: Unacceptable; Refrigerated: 8 days; Frozen: 3 months |
Reference Range
| 0-30 days: | 611-1542 mg/dL |
| 1 month: | 241-870 mg/dL |
| 2 months: | 198-577 mg/dL |
| 3 months: | 169-558 mg/dL |
| 4 months: | 188-536 mg/dL |
| 5 months: | 165-781 mg/dL |
| 6 months: | 206-676 mg/dL |
| 7-8 months: | 208-868 mg/dL |
| 9-11 months: | 282-1026 mg/dL |
| 1 year: | 331-1164 mg/dL |
| 2 years: | 407-1009 mg/dL |
| 3 years: | 423-1090 mg/dL |
| 4 years: | 444-1187 mg/dL |
| 5-7 years: | 608-1229 mg/dL |
| 8-9 years: | 584-1509 mg/dL |
| >=10 years: | 700-1600 mg/dL |
Performed
| Sunday-Thursday |
| 3 days | |||||
| IGG | |||||
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