A nurse is planning care for a client who has a new diagnosis of diabetes insipidus (DI). Which of the following interventions should the nurse include in the plan of care?

Choice A reason: Administering a diuretic is contraindicated in diabetes insipidus, as it exacerbates water loss, worsening dehydration. DI requires interventions like vasopressin or fluid replacement to correct dilute urine output, making diuretics harmful and inappropriate for managing this condition’s pathophysiology. Choice B reason: Checking urine specific gravity is essential in DI, as low values (e.g., 1.000-1.005) indicate dilute urine from deficient antidiuretic hormone, confirming diagnosis and guiding treatment. Monitoring helps assess vasopressin effectiveness and fluid status, making it a critical intervention in DI care. Choice C reason: Measuring blood glucose every 4 hours is irrelevant to DI, which involves water balance, not glucose metabolism. Glucose monitoring is key in diabetes mellitus, not DI, where polyuria results from ADH deficiency, making this intervention unrelated to the condition’s management. Choice D reason: Initiating fluid restrictions is inappropriate for DI, as it worsens dehydration caused by excessive water loss from low ADH. Fluid replacement or vasopressin is needed to restore water balance, making fluid restriction a harmful intervention that exacerbates DI’s hypovolemic state.