IgG Test – Everything You Need to Know If your doctor has recommended an IgG test, or you searched it due to allergies, infections, or immunity concerns  you’re in the right place. This guide explains what an IgG test is, why it’s done, and where to get it in Islamabad with reliable results. What is an IgG Test? An IgG (Immunoglobulin G) test measures the level of IgG antibodies in your blood. These antibodies: Help your body fight infections Indicate past exposure to viruses or bacteria...