Allergy / Immunology
Also known as: Immunoglobulin G, IgG
If you have recurrent severe infections, unexplained fevers, significant weight loss, or severe fatigue, contact your clinician promptly. No common urgent flag from this test alone.
This lab test checks how much IgG antibody is in your blood. These antibodies are a big part of your body's defense system. They help protect you from infections for a long time.
Your doctor orders this test to check how well your body fights off sickness. This is especially true if you get sick often. It also helps if you have health problems that change how many antibodies you have.
Reference ranges can vary between different laboratories. Your doctor will interpret your results based on the specific ranges used by the lab that performed your test.
Clinical Reference
175901032286316Medicare covers for prostate cancer evaluation
Educational purposes only — This information is not a substitute for professional medical advice, diagnosis, or treatment. Always discuss your lab results with your healthcare provider.