Family Medicine Question of the Week: Nephrology
Kicking off Nephrology Week with a practice question for the ABFM Board from the Knowmedge QVault.
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A 42-year-old woman presents with altered mental status. According to her husband, she has been getting progressively more confused and sleepy over the past few weeks. Her oral intake has decreased due to profound nausea. She also seems to stumble, and she has had several falls at home. Her past medical history is significant for breast cancer. She underwent lumpectomy and radiation therapy; she completed therapy 1 year ago. She has not had any medical contact for the past 8 months. Physical exam reveals a somnolent, but arousable, woman in no acute distress. Heart and lung exam are unremarkable. Neurologic exam is nonfocal; however, there is general hypotonicity and decreased deep tendon reflexes.
Vital signs are as follows:
What electrolyte disorder is most likely causing her constellation of symptoms?
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