What is immunoelectrophoresis? (Quick breakdown)

So, I’ve been searching Google without much luck—does anyone know what actually happens during an immunoelectrophoresis test? Like, what specific markers are they looking for? And if the results come back normal, what does that signify versus if something is off?

Thanks a lot

Basically, this test identifies the specific type of monoclonal immunoglobulin—which is just a fancy way of saying a protein. Doctors usually order this marker when they’re checking for things like lymphoma. But look, don't go spiraling into a panic thinking it's the worst-case scenario right away. They often include this check during a standard full blood count or differential to see if there's an underlying viral infection, a bacterial issue, or even an autoimmune disorder going on. It’s also used as a secondary screen for malignancies. You typically see this ordered when the basic labs aren't giving a clear answer, like if someone has persistent, reactive lymph nodes that won't settle down.