5.0 of 4 Ratings
A 42-year-old Caucasian woman presents to the emergency department with complaints of progressive weight loss, dizziness, nausea, and vomiting over the last several months. She returned from a 2-week international business trip 6 months ago where she reports being ill with a fever, diarrhea, and a cough. Her temperature is 97.7°F (36.5°C), blood pressure is 114/64 mmHg, pulse is 105/min, respirations are 72/min, and oxygen saturation is 99% on room air. Physical exam is significant for the finding in Figure A. Initial laboratory studies are ordered as seen below.Serum:Na+: 139 mEq/LCl-: 100 mEq/LK+: 6.3 mEq/LHCO3-: 15 mEq/LBUN: 20 mg/dLGlucose: 66 mg/dLCreatinine: 1.1 mg/dLCa2+: 10.2 mg/dLWhich of the following is the most likely underlying etiology of this patient's symptoms?
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