<prompt> Cause of polyuriaHyperglycemiaHypoglycemiaDecreased fluid intakeHypocalcemia  <response>: Causes of polyuria- Diabetic insipidus Primary Polydipsiapsychogenic,hypothalamic disease ,drugs-thioridazine ,chlorpromazine, anti cholinergic drugs Solute diuresis Glucose ,mannitol, radiocontrast Ureafrom high protein intake Diuretics Medullary cystic diseases Resolving ATN or obstruction . -poorly controlled diabetes mellitus with glycosuria is the most common cause of solute diuresis. Ref:Harrison 20 th edition pg no 294 