Problem: A hospitalized client has developed diabetes insipidus and is given desmopressin. The nurse is aware which laboratory result indicates an improvement in the client's condition? Need Assignment Help? Exhibit 1. White blood cells of 7,000 mm3 (7 x 10^9) 2. Urine specific gravity of 1.010 3. Hemoglobin of 22 g/dL (220 g/L) 4. Serum sodium of 148 mEq/L (148 mmol/L)