Elevated levels of an electrolyte are indicated with the prefix “hyper-.” Depleted levels of an electrolyte are indicated with “hypo-.” Conditions caused by electrolyte level imbalances include: calcium: hypercalcemia and hypocalcemia chloride: hyperchloremia and hypochloremia magnesium: hypermagnesemia and hypomagnesemia phosphate: hyperphosphatemia or hypophosphatemia potassium: hyperkalemia and hypokalemia sodium: hypernatremia and hyponatremia