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Biomarkers · Chemical

IgG

Also listed as
Immunoglobulin G, Qn, Serum
Primary unit
mg/dL
LOINC codes
2465-3
Tests that measure IgG
Labcorp 16, Quest Diagnostics 4

Tests

Check the catalog code, specimen, method and preparation for every test that measures IgG. Select up to five tests to compare them side by side.

Labcorp 16 tests

Single-analyte tests

  • IgG, Immunoglobulin G (RDL) 520108

    Serum · Fasting not stated · Turnaround 4 - 6 days

    Method and collection
    Method
    Turbidimetry
    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.
    Labcorp catalog page

  • Immunoglobulin G, Quantitative 001776

    Serum · Fasting not stated · Turnaround Within 1 day

    Method and collection
    Method
    Immunoturbidimetric
    Reference notes
    See table. Age Male (mg/dL) Female (mg/dL) 0 to 10 d 496−1231 496−1231 11 d to 6 m 175−639 184−697 7 to 11 m 261−791 295−787 1 to 3 y 428−1028 451−1071 4 to 6 y 538−1216 583−1262 7 to 9 y 580−1302 630−1350 10 to 11 y 601−1351 646−1407 12 to 13 y 610−1367 692−1433 14 to 15 y 630−1392 717−1463 16 to 19 y 671−1456 719−1475 >19 y 603−1613 586−1602
    Labcorp catalog page

Panels that include this biomarker

  • Immunofixation (IFE), Serum 001685

    3 analytes · Serum · Fasting not stated · Turnaround 3 - 5 days

    Method and collection
    Method
    Electrophoresis followed by immunodiffusion against monospecific antisera to immunoglobulin and individual heavy and light chains (IFE); turbidimetric quantitation of IgA, IgG, and IgM
    Preparation
    Overnight fasting is preferred, but not required.
    Collection
    Separate serum from red cells.
    Reference notes
    Normal pattern
    Labcorp catalog page

  • Immunofixation, Daratumumab-Specific, Serum 123218

    3 analytes · Serum · Fasting not stated · Turnaround 6 - 8 days

    Method and collection
    Method
    Electrophoresis followed by immunodiffusion against mono-specific antisera to immunoglobulin and individual heavy and light chains (IFE); turbidimetric quantitation of IgA, IgG, IgM. The HYDRASHIFT 2/4 daratumumab gel shift assay uses an anti-daratumumab antibody to allow for the migration of Daratumumab/anti-daratumumab complexes away from the γ globulin zone on IFE, toward the α1-globulin fraction, thus removing IgG κ interference in the γ globulin zone caused by Daratumumab in the patient's serum.
    Preparation
    Overnight fasting is preferred, but not required.
    Collection
    Separate serum from red cells.
    Reference notes
    Normal pattern
    Labcorp catalog page

  • Immunofixation, Isatuximab-Specific, Serum 123062

    3 analytes · Serum · Fasting not stated · Turnaround 4 - 8 days

    Method and collection
    Method
    Electrophoresis followed by immunodiffusion against mono-specific antisera to immunoglobulin and individual heavy and light chains (IFE); turbidimetric quantitation of IgA, IgG, IgM. The HYDRASHIFT 2/4 isatuximab gel shift assay uses an anti-isatuximab antibody to allow for the migration of isatuximab/anti-Isatuximab complexes away from the gamma globulin zone on IFE, toward the alpha-1-globulin fraction, thus removing IgG kappa interference in the gamma globulin zone caused by isatuximab in the patient's serum.
    Preparation
    Overnight fasting is preferred but not required.
    Collection
    Separate serum from red cells.
    Labcorp catalog page

  • Immunoglobulins, Quantitative, IgA, IgG, IgM 001768

    3 analytes · Serum · Fasting not stated · Turnaround Within 1 day

    Method and collection
    Method
    Immunologic
    Labcorp catalog page

  • Immunoglobulins, Quantitative, IgA, IgE, IgG, IgM 002295

    4 analytes · Serum · Fasting not stated · Turnaround 2 - 4 days

    Method and collection
    Method
    IgG, IgA, IgM: Immunologic; IgE: Thermo Fisher ImmunoCAP®
    Labcorp catalog page

Quest Diagnostics 4 tests

Single-analyte tests

  • IgG 543

    Serum · Fasting not stated · Turnaround Set up: Tues-Sat; Report available: 5 days

    Method and collection
    Method
    Immunoturbidimetric
    Reference notes
    Cord Blood 600-1600 mg/dL 1-28 days 250-600 mg/dL 1-3 months 200-600 mg/dL 4-6 months 160-590 mg/dL 7-11 months 160-800 mg/dL 1 year 280-1040 mg/dL 2 years 330-1120 mg/dL 3-5 years 390-1360 mg/dL 6-8 years 440-1470 mg/dL 9-11 years 480-1530 mg/dL 12-16 years 500-1590 mg/dL 17-60 years 600-1640 mg/dL ≥61 years 600-1540 mg/dL
    Quest Diagnostics catalog page

Panels that include this biomarker

  • Immunoglobulin G Subclasses Panel 7903

    2 analytes · Serum · Fasting not stated · Turnaround Set up: Sun-Wed (p.m.)

    Method and collection
    Method
    Immunoturbidimetric Assay
    Reference notes
    See Laboratory Report
    Quest Diagnostics catalog page

  • Immunoglobulins Panel, Serum 7083

    3 analytes · Serum · Fasting not stated

    Method and collection
    Method
    Immunoturbidimetric
    Reference notes
    IgA, Serum Cord Blood | Not Established ≤3 months | 5-40 mg/dL 4-6 months | 7-47 mg/dL 7-11 months | 12-53 mg/dL 1 year | 20-73 mg/dL 2 years | 20-99 mg/dL 3-5 years | 22-140 mg/dL 6-8 years | 31-180 mg/dL 9-11 years | 33-200 mg/dL 12-16 years | 36-220 mg/dL 17-60 years | 47-310 mg/dL ≥61 years | 70-320 mg/dL IgG, Serum Cord Blood | 600-1600 mg/dL 1-28 days | 250-600 mg/dL 1-3 months | 200-600 mg/dL 4-6 months | 160-590 mg/dL 7-11 months | 160-800 mg/dL 1 year | 280-1040 mg/dL 2 years | 330-1120 mg/dL 3-5 years | 390-1360 mg/dL 6-8 years | 440-1470 mg/dL 9-11 years | 480-1530 mg/dL 12-16 years | 500-1590 mg/dL 17-60 years | 600-1640 mg/dL ≥61 years | 600-1540 mg/dL IgM, Serum Cord Blood | 6-25 mg/dL 1-28 days | 10-50 mg/dL 1-3 months | 10-72 mg/dL 4-6 months | 12-86 mg/dL 7-11 months | 13-120 mg/dL 1 year | 23-130 mg/dL 2 years | 25-135 mg/dL 3-5 years | 26-150 mg/dL 6-8 years | 25-150 mg/dL 9-11 years | 40-160 mg/dL 12-16 years | 41-170 mg/dL ≥17 years | 50-300 mg/dL
    Quest Diagnostics catalog page

  • Cutaneous Direct Immunofluorescence 18899

    5 analytes · Standard skin biopsy · Fasting not stated · Turnaround Set up: Mon-Fri; Report available: 5 days

    Method and collection
    Method
    Immunoassay (IA)
    Reference notes
    See Laboratory Report
    Quest Diagnostics catalog page

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Sources

Check the guidelines, studies and lab catalogs behind every range and link on this page. Open a source to see each claim it backs.

Lab catalogs

Codes and registries

  • LOINC 2465-3

    Regenstrief Institute codes that identify the same result across labs.

  • Search ClinicalTrials.gov for IgG

    Registered studies that measure IgG, on the U.S. National Library of Medicine registry.

Verify these ranges and sources

We compile this page from named laboratory catalogs, guidelines and studies. Labs calculate reference intervals from the people they test, for one assay method and one population group, so an interval describes that population rather than an optimal target.

Interpret your own results with a licensed clinician, or track your lab history and health goals in Aumnivida.

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