Nausea/vomiting
Abdominal pain
Dehydration
Altered mental status
Fatigue
Tachypnea, Kussmaul breathing
Starvation ketoacidosis
Diabetic ketoacidosis
Alcoholic ketoacidosis
Diabetic ketoacidosis 
Lactic acidosis
Toxic alcohols 
Cerebral edema in DKA
Uremia