Endocrinology Quiz #6: Prolactin

1. A 29-year-old woman presents with amenorrhea and galactorrhea for the past six months. She denies any headaches or changes in vision. Her serum prolactin level is found to be significantly elevated. Which of the following is the most likely cause of her symptoms? 

Question 1 of 5

2. A 34-year-old man presents with decreased libido and erectile dysfunction. Laboratory tests reveal elevated prolactin levels and decreased testosterone levels. MRI of the brain shows a 3 mm mass in the region of the pituitary gland. Which of the following treatments is most appropriate for this patient? 

Question 2 of 5

3. During lactation, high levels of prolactin inhibit the release of which of the following hormones?

Question 3 of 5

4. A patient with a recently diagnosed prolactin-secreting pituitary adenoma is started on treatment with a dopamine agonist. Which of the following side effects should the patient be informed about? 

Question 4 of 5

5. Which of the following is a physiological effect of prolactin? 

Question 5 of 5


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