The nurse is caring for a patient with a traumatic brain injury.The nurse suspects the patient is developing diabetes insipidus.Which test or procedure would confirm this diagnosis?

Question

Quizplus · Accepted Answer

Serum antidiuretic hormone (ADH)levels are compared with the blood and urine osmolality to differentiate syndrome of inappropriate antidiuretic hormone (SIADH)from central diabetes insipidus (DI).Increased ADH levels in the bloodstream compared with a low serum osmolality and elevated urine osmolality confirms the diagnosis of SIADH.Reduced levels of serum ADH in a patient with high serum osmolality,hypernatremia,and reduced urine concentration signal central DI.

The Nurse Is Caring for a Patient with a Traumatic