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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


Specimen

Serum


Volume

2 mL


Minimum Volume

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


Collection

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

Temperature

Period

Room temperature

7 days

Refrigerated

14 days

Frozen

60 days

Freeze/thaw cycles

Stable x1


Causes for Rejection

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


Test Details


Use

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.


Methodology

Turbidimetry


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CPT Statement/Profile Statement

The LOINC® codes are copyright © 1994-2020, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. Permission is granted in perpetuity, without payment of license fees or royalties, to use, copy, or distribute the LOINC® codes for any commercial or non-commercial purpose, subject to the terms under the license agreement found at https://loinc.org/license/. Additional information regarding LOINC® codes can be found at LOINC.org, including the LOINC Manual, which can be downloaded at LOINC.org/downloads/files/LOINCManual.pdf