Pituitary Disorders: Acromegaly and SIADH/DI · NCLEX Exam

What disorder should the nurse suspect in a post-operative patient after pituitary surgery who begins passing very large volumes of very dilute urine and has extreme thirst?

  1. SIADH
  2. Diabetes insipidus
  3. Cushing’s disease
  4. Acromegaly
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Correct answer: Diabetes insipidus

Following pituitary surgery, damage to the posterior pituitary may cause ADH deficiency leading to central diabetes insipidus, manifested by polyuria and polydipsia.

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