A 38-year-old female has undergone a transsphenoidal hypophy…

A 38-year-old female has undergone a transsphenoidal hypophysectomy for Cushing disease caused by a pituitary adenoma. On postoperative day 1, the nurse notes the following assessment findings: BP: 90/60 mmHg HR: 112 bpm Complaints of severe headache Large amount of clear nasal drainage on the dressing Sodium level: 128 mEq/L Urine output: 1,200 mL in the past 4 hours Which of the following should the nurse do first?

A 25-year-old woman presents with complaints of excessive th…

A 25-year-old woman presents with complaints of excessive thirst, urination, and fatigue over the past few weeks. She reports needing to drink more than 5 liters of water daily and has to urinate frequently during both day and night. On examination, she appears mildly dehydrated, with dry mucous membranes, but her blood pressure is normal. Laboratory tests show a low urine osmolality of 150 mOsm/kg and a high serum osmolality of 310 mOsm/kg. Which of the following clinical manifestations is most characteristic of diabetes insipidus?