Symptoms of diabetic ketoacidosis include:
Nausea and vomiting with or without abdominal pain
As blood ketone levels increase, the person's breathing pattern may become slow and deep, and his or her breath can have a fruity odor. A person with ketoacidosis may seem to be tired or confused or may have trouble paying attention. Without prompt treatment in the first day of symptoms, the illness may cause low blood pressure, a loss of consciousness, coma or death.
If you have type 1 diabetes, it is important to measure your blood glucose levels at home using a machine called a glucometer. You also should have paper test strips that can detect ketones in the urine. If your blood glucose reading is above 300 milligrams per deciliter, you should test your urine for ketones. If the urine test strip reads "moderate" or "large," it's possible you have ketoacidosis.