A patient presenting with diabetes insipidus (DI) exhibits
a. hyperosmolality and hypernatremia.
b. hyperosmolality and hyponatremia.
c. hypo-osmolality and hypernatremia.
d. hypo-osmolality and hyponatremia.
A
In central DI, there is an inability to secrete an adequate amount of antidiuretic hormone (arginine vasopressin) in response to an osmotic or nonosmotic stimuli, resulting in inappropriately dilute urine. Hypernatremia is usually associated with serum hyperosmolality.
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