Jason, a 54-year-old man with a history of type 1 diabetes for 48 years, presents to the emergency room with abdominal pain, nausea, fatigue, and a fruity odor on his breath. His blood sugars have been elevated. His initial diagnosis is diabetic ketoacidosis, which is confirmed by blood tests showing high blood glucose, low pH and bicarbonate levels, and ketones in his blood and urine. Diabetic ketoacidosis occurs when blood sugars rise over 250mg/dl and the body breaks down fat and produces ketones due to lack of insulin. It can be life-threatening if untreated but with proper treatment of insulin and fluid replacement, the condition can be managed.