Diabetic ketoacidosis (DKA) is a complex disease process with multiple horm
onal abnormalities that cause various deleterious fluid and electrolyte cha
nges in both animals and humans. Pathogenesis of DKA involves a relative ex
cess ratio of glucagon to insulin. Other hormones influencing DKA include c
ortisol, epinephrine, and growth hormone. Abnormal physical examination and
clinicopathologic findings result from these hormonal changes.