DKA is a condition that involves high levels of ketones in your blood. Without treatment, DKA can be fatal.
The cause of DKA is a blood sugar level that is too high – typically above 250 mg/dl -- for too long. The elevated blood sugar is due to a lack of insulin. Without enough insulin, cells can’t use the sugar in your blood as fuel. The cells turn to fat instead. When fat is burned, it makes acids called ketones. Over time, the buildup of ketones can have serious effects.