General Immunoglobulin (Ig) Profile by Electrophoresis

Why This Test Is Done

Doctors may order this test if you have symptoms like frequent infections, unexplained fatigue, or signs of an overactive immune system. It can also be part of a routine check for conditions like multiple myeloma, lymphoma, or other blood disorders. Sometimes, it’s used to monitor treatment progress for immune-related illnesses.

What to Expect Before the Test

No special preparation is needed. You’ll have a small needle inserted into your arm to draw blood. The process usually takes a few minutes. If you’re nervous, let your healthcare provider know—they can offer reassurance or medications if needed.

What the Results Mean

The test separates blood proteins into bands (like lanes on a gel) based on size and charge. Each band represents a different type of immunoglobulin (IgG, IgA, IgM, IgD, or IgE). Abnormal patterns may indicate low or high levels of specific antibodies, which can signal immune system issues.

Common Conditions Linked to This Test

High levels of certain immunoglobulins might suggest autoimmune diseases (e.g., rheumatoid arthritis), infections, or allergies. Low levels could point to immune deficiencies (e.g., HIV, certain genetic disorders), or conditions like multiple myeloma where abnormal proteins build up in the blood.