Hypophosphatemia in Cats   A low concentration of phosphorus in the blood serum can be caused by shifts of phosphorus from the extracellular fluid (the fluid outside of the cells) into the body cells, reduced intestinal absorption of phosphorus, or reduced renal (kidney) phosphorus reabsorption.   In patients that are being treated with insulin for diabetic ketoacidosis (a condition in which the body burns fatty acids and produces acidic ketone bodies in response to insulin shortage, or are undergoing refeeding with glycolysis (synthesized glucose) for treatment of starvation, a resu ...read more