Immunoglobulin G (IgG): Function, Tests & Disorders
Jun 12, 2025 · IgG antibodies (immunoglobulin G) are proteins that your immune system makes to fight off infections. They’re especially important as part of your secondary immune …
Immunoglobulin Test: High vs Low vs Normal Levels of (Ig ... - WebMD
Aug 2, 2025 · This test checks the amount of certain antibodies called immunoglobulins in your body. Antibodies are proteins that your immune cells make to fight off bacteria, viruses, and …
Immunoglobulins Blood Test: MedlinePlus Medical Test
What is an immunoglobulins blood test? An immunoglobulins blood test measures the amount of immunoglobulins in your blood. Immunoglobulins are also called antibodies. Antibodies are …
What Are Normal IgG Levels? High and Low Levels Explained
Aug 16, 2025 · A healthcare professional draws a blood sample, usually from a vein in the arm, which is then sent to a laboratory for analysis. This test quantifies the amount of IgG …
IgG: Understanding Your Blood Test Results - BloodSense
Oct 9, 2025 · Doctors order an IgG blood test to evaluate immune function, diagnose infections, or monitor chronic diseases. The test requires a simple blood draw, usually from a vein in the …
Immunoglobulin G (IgG Test) Results Interpretation Range | Drlogy
The Immunoglobulin G or IgG test is a blood test used to measure the level of IgG antibodies in your body. These antibodies play a crucial role in your immune system's ability to fight …
IgG Deficiencies - Johns Hopkins Medicine
A blood test that measures immunoglobulin levels can diagnose IgG deficiency. It’s possible to have a normal level of total IgG, so the testing of the IgG subclasses is important.
Immunoglobulins - Kaiser Permanente
IgG antibodies are the only type of antibody that can cross the placenta, Opens dialog. during pregnancy to help protect the baby (fetus). IgM. IgM antibodies are the largest antibody. They …
Health Encyclopedia - University of Rochester Medical Center
They are called IgM, IgG, IgA, and IgE. IgG is found in your blood and tissue. IgM is mostly found in your blood. IgA is found at high levels in fluid your mucus membranes make, such as saliva, …
Immunoglobulins Test Information - ColumbiaDoctors
IgG antibodies are the only type of antibody that can cross the placenta, Opens dialog. during pregnancy to help protect the baby (fetus). IgM. IgM antibodies are the largest antibody. They …