if you had an acute infection ie say glandular fever that was occuring now your body would produce a higher level of IgM to fight the infection and would show up as an increased level in your blood.
If you then fight it and then get over it the body will, for many months after, have a raised IgG...indicating that you have had a viral illness in the recent past.
Because your IgG and IgM are within normal limits,it suggests that you have not had a recent viral or bacterial illness.This is a cutting from info on immunoglobulins...if it helps you understand them. One positive outcome of ImGlob tests is that it rules out alot of the serious problems like lupus chrohns and leukaemia.
Saying that...because i had had parvo virus for 3 years prior to detection...it did not show up on the imglobs tests.
Might still be worth asking ,if only to give peace of mind.
the five subclasses of antibodies are:
- Immunoglobulin A (IgA), which is found in high concentrations in the mucous membranes, particularly those lining the respiratory passages and gastrointestinal tract, as well as in saliva and tears.
- Immunoglobulin G (IgG), the most abundant type of antibody, is found in all body fluids and protects against bacterial and viral infections.
- Immunoglobulin M (IgM), which is found mainly in the blood and lymph fluid, is the first to be made by the body to fight a new infection.
- Immunoglobulin E (IgE), which is associated mainly with allergic reactions (when the immune system overreacts to environmental antigens such as pollen or pet dander). It is found in the lungs, skin, and mucous membranes.
- Immunoglobulin D (IgD), which exists in minute amounts in the blood, is the least understood antibody.
IgA, IgG, and IgM are frequently measured simultaneously. Evaluated together, they can give doctors important information about immune system functioning, especially relating to infection or autoimmune disease.