Immunoglobulin A (IgA), Individual Quant
Label Mnemonic: IGA
Epic Lab Code: LAB73
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:
70-400 mg/dL Children and Juveniles 0-1 year 0-83 mg/dL 1-3 years 20-100 mg/dL 4-6 years 27-195 mg/dL 7-9 years 34-305 mg/dL 10-11 years 53-204 mg/dL 12-13 years 58-358 mg/dL 14-15 years 47-249 mg/dL 16-19 years 61-348 mg/dL 20-adult 70-400 mg/dL
Comments:
Refer to BD Microtainer® Tubes product sheet for detailed sample collection instructions.
Test Limitations:
Criterion: Recovery within plus or minus 10% of initial value. 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 IgA and IgG or IgM under the assay conditions. Plasma with ill-defined characteristics should be subject to protein electrophoresis to identify a possible antigen excess (e.g. gammopathy). A high-dose hook effect may occur at concentrations above 12,000 mg/dL (120 g/l).
Methodology:
Immunoturbidimetric
CPT Code:
82784