A Patient with an Antidiuretic Hormone (ADH)-Secreting Small-Cell Cancer of the Lung

A patient with an antidiuretic hormone (ADH) -secreting small-cell cancer of the lung is treated with demeclocycline (Declomycin) to control the symptoms of syndrome of inappropriate secretion of antidiuretic hormone (SIADH) . The nurse determines that the demeclocycline is effective upon finding that the

A) patient's daily weight is stable.
B) urine specific gravity is increased.
C) patient's urinary output is increased.
D) peripheral edema is decreased.