MS-0976

A 54-year-old female visits her doctor complaining of chronic thirst, polyuria, and nocturia that have persisted for 2 months. She has a medical history of polycystic kidney disease that has led to chronic kidney disease (CKD). Her most recent eGFR result was 28 mL/min/1.73m². Following a series of tests, she is diagnosed with nephrogenic diabetes insipidus. What would the water deprivation test likely reveal in this patient’s case?