Genitourinary Review of Systems Related

Review Genitourinary Review of Systems related questions and content

A patient with psychologic disorder is being treated with a drug. Few months he is worried that he is constantly thirsty and urinates copiously frequently throughout the day and night. Which of the following drugs most likely cause inappropriate secretion of ADH?

  • A. Diazepam
  • B. Lithium
  • C. Haloperidol
  • D. Phenytoin
Correct Answer: B

Rationale: The correct answer is B: Lithium. Lithium is known to cause nephrogenic diabetes insipidus, leading to inappropriate secretion of ADH. This results in excessive thirst and copious urination. Diazepam (A) does not affect ADH secretion. Haloperidol (C) and Phenytoin (D) are not associated with ADH dysregulation.