A 24-year-old woman presents with a chief complaint of not feeling well for the past several days. She describes generalized weakness and is at times confused and fatigued, but she denies fever, nausea, vomiting, or abdominal pain. She has been drinking a lot of fluids and urinates every 1-2 hours during the day. She also gets up once or twice at night to urinate. She has a history of major depression, for which she is regularly seeing a psychiatrist. Examination shows she is well hydrated. Her temperature is 37.1 C (98.8 F), blood pressure is 120/80 mm Hg, pulse is 70/min, and respirations are 18/min. Her heart is regular, with a grade 2/6 systolic murmur best heard along the left sterna boarder. Which of the following sets of laboratory findings is most compatible with the diagnosis? (A) Hypernatremia and high urine sodium (B) Hyponatremia and high urine sodium (C) Hypernatremia and low urine sodium (D) Hyponatremia and low urine sodium (E) Hypernatremia and normal urine sodium
Posted on: Sun, 21 Dec 2014 12:57:43 +0000
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