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Test Code LAB73 Immunoglobulin A (IgA)

Department

CHEMISTRY

Primary Collection Container

Gold (SST)

Alternate Collection Container

Yellow Microtainer SST

Transport

Serum refrigerated

Preferred Transport Temperature

Refrigerated

Processing

Centrifuge and refrigerate.

Separate from cells if testing is delayed more than 8 hours.

Freeze if assay is not to be completed in 48 hours.

Stability

Refrigerated: 48 hours

Freeze if assay is not to be completed in 48 hours.

Minimum Testing Volume

0.2 mL

Reference Range

0-4mo 68-346 mg/dL

4mo-7mo 0-28 mg/dL

7mo-1yr 16-44 mg/dL

1-2yr 16-55 mg/dL

2-3yr 23-72 mg/dL

3-6yr 23-72 mg/dL

6-9yr 28-124 mg/dL

9-12yr 57-181 mg/dL

12-17yr 53-171 mg/dL

>17yr 78-390 mg/dL

Methodology

Proteins contained in human body fluids form immune complexes in an immunochemical reaction with specific antibodies. These complexes scatter a beam of light passed through the sample. The intensity of the scattered light is proportional to the concentration of the respective protein in the sample. The result is evaluated by comparison with a standard of known concentration. Siemens Dimension Vista.

Performed

Sunday – Saturday

Reported

As completed

CPT Codes

82784

Unacceptable Conditions

Gross lipemia.

Gross hemolysis.