Immunoglobulin G (IgG), Individual Quant
Label Mnemonic: IGG
Epic Lab Code: LAB71
Downtime Form: A-1a General Laboratory Requisition
Chemistry
6240 RCP
356-3527
Specimen(s):
Plasma
Collection Medium:
Plasma Separator Tube 4.5 mL
Alternate Collection Media:
Call laboratory for additional acceptable specimen collection containers.
Minimum:
3 mL whole blood from light green top tube or ONE Microtainer®.
Testing Schedule:
24 hrs/day, 7 days a week, including holidays.
Turn Around Time:
1 hour (upon receipt in laboratory)
Reference Range:
700-1600 mg/dL Children and Juveniles 0-1 year 232-1411 mg/dL 1-3 years 453-916 mg/dL 4-6 years 504-1465 mg/dL 7-9 years 572-1474 mg/dL 10-11 years 698-1560 mg/dL 12-13 years 759-1550 mg/dL 14-15 years 716-1711 mg/dL 16-19 years 549-1584 mg/dL
Test Limitations:
Criterion: Recovery within plus or minus 10% of initial values. Icterus: No significant interference up to an I index of 60 (approximate conjugated and unconjugated bilirubin concentration: 60 mg/dL). Hemolysis: No significant interference up to an H index of 1000. (approximate hemoglobin concentration: 1000 mg/dL) Lipemia (Intralipid): No significant interference up to an L index of 2000. There is poor correlation between turbidity and triglycerides concentration. There is no cross-reaction between IgG, IgA and IgM under the assay conditions. Sera with ill-defined clinical characteristics should first be subjected to protein electrophoresis so that an antigen excess (e.g. gammopathy), if present, can be identified. IgG concentrations of more than 40,000 mg/dL (400 g/L) can cause a high-dose hook effect.
Methodology:
Immunoturbidimetric
CPT Code:
82784