Check your ketones. Uncontrolled blood sugar levels can increase your risk of diabetic ketoacidosis, or DKA, a life-threatening condition more common in people with type 1 diabetes. Without sugar to burn for energy, your body begins burning fat, a process that releases acids called ketones into the bloodstream and urine.
Use ketone test strips every four to six hours. If your levels are high, call your diabetes care team. Early symptoms of ketoacidosis include increased thirst and/or dry mouth and frequent urination. Later symptoms include weakness, confusion, fruity odor on breath and nausea, vomiting or abdominal pain.