Is m protein igg kappa 4.1 a low level?

Why do you ask?: If you've been found to have a paraprotein, the real question is, "Do we treat for plasma cell myeloma?" These paraproteins are very common, especially as folks get older; most never progress. The actual level of the paraprotein isn't the key. If this is grams per liter, a value below 10 is "low". If your labs are otherwise good and you feel well, I wouldn't give it another thought. Best wishes.