Multiple Choice Set 5: Endocrine & Diabetes (NCLEX)

A 48-year-old male client has central diabetes insipidus after pituitary surgery. Before the client starts prescribed oral desmopressin, urine output is 450 mL/hour and sodium is 151 mEq/L (reference range 135–145 mEq/L). The reference range for urine specific gravity is 1.003–1.030. Which subsequent findings indicate an effective response without water intoxication?

1.Urine output 60 mL/hour; specific gravity 1.012; sodium 143 mEq/L.
2.Urine output 100 mL/hour; specific gravity 1.025; sodium 128 mEq/L.
3.Urine output 400 mL/hour; specific gravity 1.001; sodium 151 mEq/L.
4.Urine output 500 mL/hour; specific gravity 1.001; sodium 154 mEq/L.