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QIG Quantitative Immunoglobulins IgG, IgA and IgM by Turbidimetry (RDL)

CPT: 82784(x3)

Test Includes

Immunoglobulins IgG, IgA and IgM

Expected Turnaround Time

14 - 21 days

Specimen Requirements




2 mL

Minimum Volume

0.5 mL (Note: This volume does not allow for repeat testing.)


Separate serum from cells within one hour of collection. Transfer to a plastic transport tube before shipping. To avoid delays in turnaround time when requesting multiple tests on frozen samples, please submit separate frozen specimens for each test requested.

Storage Instructions

Refrigerate or freeze.

Stability Requirements



Room temperature

7 days


14 days


60 days

Freeze/thaw cycles

Stable x1

Causes for Rejection

Grossly hemolyzed; bacterial contamination; lipemic specimen; icteric specimen; non-serum specimen types

Test Details


Quantitation of immunoglobulins (lgG, IgA, and IgM) in serum provides useful information for the evaluation of certain disease states. Increased concentrations of these proteins may occur in disorders such as monoclonal or polyclonal gammopathies. Differentiation of these gammopathies can be supported by measuring selective increases in immunoglobulins. Decreased concentrations of immunoglobulins may indicate hypogammaglobulinemia as a result of primary or secondary immunodeficiency.



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