label: Inappropriately low urine osmolality following challenge
label_lc: inappropriately low urine osmolality following challenge
description: "In diabetes insipidus, affected individuals produce large quantities of dilute urine. In nephrogenic DI, the kidneys do not respond to vasopressin. In a water deprivation test or with administration of exogenous vasopressin, the osmolaltiy of the urine does not increase as normally."