Endocrinology Quiz #5: Antidiuretic Hormone

1. A 45-year-old man presents with complaints of excessive thirst and urination. Lab tests reveal low urine osmolality and high serum sodium. Which of the following conditions is most likely responsible for these findings? 

Question 1 of 5

2. A 54-year-old woman with lung cancer presents with confusion and seizures. Labs show low serum sodium. Which paraneoplastic syndrome is most likely associated with her condition? 

Question 2 of 5

3. A patient with a history of bipolar disorder is treated with lithium. After a few weeks, the patient develops polyuria and polydipsia. Which of the following is the most likely cause of these symptoms?

Question 3 of 5

4. In a physiology experiment, a healthy volunteer is given an infusion of hypertonic saline. Which of the following responses is most likely to occur in this individual? 

Question 4 of 5

5. A patient presents with symptoms of dehydration despite adequate fluid intake. Laboratory tests reveal high urine osmolality and low serum osmolality. Which of the following is the most appropriate initial treatment? 

Question 5 of 5


 

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