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A patient has developed diabetes insipidus after suffering a traumatic brain injury. After treatment has been initiated, the nurse assesses the patient for signs of improvement, including

Explanation

• Diabetes insipidus causes polyuria, polydipsia, and fluid volume deficit. A urine output of less than 150 ml/hr indicates that the patient is able to retain fluid.

• Tachycardia, hypotension, and polydipsia are signs of diabetes insipidus, indicating that the treatment has not been effective.

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