During the first postoperative day following a craniotomy, a client is noted to have produced 2,400 mL of urine with a specific gravity of 1.001. The nurse suspects that the client has developed: 1....

During the first postoperative day following a craniotomy, a client is noted to have produced 2,400 mL of urine with a specific gravity of 1.001. The nurse suspects that the client has developed:

1. Syndrome of inappropriate antidiuretic hormone.

2. Diabetes insipidus.

3. Excessive urination from fluids given during surgery.

4. Adverse effects of opioids used for pain management.