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This Concept Map, created with IHMC CmapTools, has information related to: Q1, A 26-year-old woman is evaluated in the office for amenorrhea. Her last menstrual period was 3 months ago, and three home pregnancy tests have been negative. She has no other symptoms and takes no medications. Menarche occurred at age 12 years, and her menstrual cycle had been regular until 3 months ago. Upon further questioning, she recounts weekly headaches and occasional galactorrhea on breast palpation. Physical examination, including neurologic examination and deep tendon reflexes, is normal. A pregnancy test is negative, and the prolactin level is 1665 ng/mL. Which of the following is the most likely cause of this patient's hyperprolactinemia? Pregnancy, A 26-year-old woman is evaluated in the office for amenorrhea. Her last menstrual period was 3 months ago, and three home pregnancy tests have been negative. She has no other symptoms and takes no medications. Menarche occurred at age 12 years, and her menstrual cycle had been regular until 3 months ago. Upon further questioning, she recounts weekly headaches and occasional galactorrhea on breast palpation. Physical examination, including neurologic examination and deep tendon reflexes, is normal. A pregnancy test is negative, and the prolactin level is 1665 ng/mL. Which of the following is the most likely cause of this patient's hyperprolactinemia? Chronic renal failure, A 26-year-old woman is evaluated in the office for amenorrhea. Her last menstrual period was 3 months ago, and three home pregnancy tests have been negative. She has no other symptoms and takes no medications. Menarche occurred at age 12 years, and her menstrual cycle had been regular until 3 months ago. Upon further questioning, she recounts weekly headaches and occasional galactorrhea on breast palpation. Physical examination, including neurologic examination and deep tendon reflexes, is normal. A pregnancy test is negative, and the prolactin level is 1665 ng/mL. Which of the following is the most likely cause of this patient's hyperprolactinemia? Primary hypothyroidism, A 26-year-old woman is evaluated in the office for amenorrhea. Her last menstrual period was 3 months ago, and three home pregnancy tests have been negative. She has no other symptoms and takes no medications. Menarche occurred at age 12 years, and her menstrual cycle had been regular until 3 months ago. Upon further questioning, she recounts weekly headaches and occasional galactorrhea on breast palpation. Physical examination, including neurologic examination and deep tendon reflexes, is normal. A pregnancy test is negative, and the prolactin level is 1665 ng/mL. Which of the following is the most likely cause of this patient's hyperprolactinemia? Prolactin-producing pituitary tumor