<prompt> All are true about Diabetes insipidus except?Low urine osmolalityDilutional HyponatremiaWater deprivation test is used for diagnosisPolyuria  <response>: Answer- B. Dilutional HyponatremiaIn diabetes insipidus, the serum osmolality is increased with inappropriately low urine osmolality.There is polyuria, as ADH deficienry causes excessive water loss in urine. 