Acid-Base Imbalance: A disruption to the normal acid-base equilibrium in the body. There are four main groups of disorder involving an acid-base imbalance: respiratory acidosis or alkalosis and metabolic acidosis or alkalosis. Obviously the severity of symptoms is determined by the degree of imbalance.
Water-Electrolyte Imbalance: The loss of balance between the level of water and the level of electrolytes in the body. Kidney failure is the most common cause of electrolyte balance but it can also be caused by such things as anorexia, bulimia, severe vomiting or diarrhea, dehydration or chronic laxative abuse.