23 January 2023
: Case report
Central Diabetes Insipidus in the Background of Lithium Use: Consider Central Causes Despite Nephrogenic as the Most Common
Unusual clinical course, Unexpected drug reaction
Jeffrey J. Li1ABCDEF*, Shirley Tan1BCDEF, Takumi Kawashita
DOI: 10.12659/AJCR.939034
Am J Case Rep 2023; 24:e939034
Table 1. Urine osmolality after desmopressin trials. First desmopressin trial resulted in a 343% increase in urine osmolality. Second desmopressin trial resulted in a 187% increase in urine osmolality. Increase in urine osmolality by at least 50% after desmopressin administration is diagnostic of central diabetes insipidus.
Urine osmolality before desmopressin administration | Urine osmolality after desmopressin administration | |
---|---|---|
Desmopressin trial 1 | 74 mOsm/kg | 254 mOsm/kg |
Desmopressin trial 2 | 194 mOsm/kg | 362 mOsm/kg |