IgG

ChemistryAlso known as: Immunoglobulin gmg/dL

Measures IgG antibody levels in body fluids to assess immune response in specific tissues.

Normal Range

700 – 1600 mg/dL

mg/dL

Abnormal Levels

Consult your provider

Specimen Type

Blood

Why This Biomarker Matters

IgG in body fluids indicates infection, inflammation, or immune dysfunction in specific areas. Elevated levels help diagnose conditions like meningitis, peritonitis, and autoimmune diseases.

Understanding Your Results

Normal Range

700 – 1600 mg/dL

Overview

IgG is an antibody protein produced by the immune system to fight infections and provide long-term immunity. When measured in body fluids like serum or plasma, peritoneal fluid, or pleural fluid, IgG levels help evaluate immune response and identify infections or inflammatory conditions in specific body compartments. Elevated IgG in these fluids may indicate chronic infection, autoimmune disease, or immune system dysfunction.

Technical Information (LOINC Codes)

Standardized laboratory codes for this biomarker

77177-4Primary

IgG [Moles/volume] in Serum or Plasma

umol/L

2464-6

IgG [Mass/volume] in Cerebral spinal fluid

mg/dL

2465-3

IgG [Mass/volume] in Serum or Plasma

mg/dL

15183-7

IgG [Mass/volume] in Body fluid

mg/dL

33415-1

IgG [Mass/volume] in Urine

mg/dL

6780-1

IgG [Mass/volume] in Urine by Electrophoresis

g/L

18302-0

IgG [Presence] in Urine by Immunofixation

18301-2

IgG [Presence] in Serum by Immunofixation

15184-5

IgG [Presence] in Serum by Immunoelectrophoresis

47083-1

IgG [Mass/volume] in 24 hour Urine

mg/dL

6781-9

IgG [Mass/volume] in Urine by Immunoassay

mg/dL

17007-6

IgG [Presence] in Serum

38488-3

IgG [Units/volume] in Serum

[arb'U]/mL

44595-7

IgG [Presence] in 24 hour Urine by Immunofixation

21350-4

IgG [Presence] in Cerebral spinal fluid by Immunofixation

25445-8

IgG [Presence] in Urine by Immunoelectrophoresis

30141-6

IgG [Presence] in 24 hour Urine by Immunoelectrophoresis

106811-3

IgG [Mass/volume] in Cord blood by Immunoassay

g/L

54901-4

IgG [Mass/volume] in Peritoneal fluid

g/L

55922-9

IgG [Mass/volume] in Serum by Electrophoresis

g/L

55923-7

IgG [Mass/time] in 24 hour Urine

mg/(24.h)

55974-0

IgG [Mass/volume] in Serum by Immune diffusion (ID)

g/L

55975-7

IgG [Mass/volume] in Body fluid by Immune diffusion (ID)

g/L

56122-5

IgG [Mass/volume] in Cord blood

mg/dL

76489-4

IgG [Moles/volume] in Cerebral spinal fluid

umol/L

76490-2

IgG [Moles/volume] in Urine

umol/L

Available Lab Tests

Order tests that measure this biomarker

IgG Test

$24.54