History of end-stage renal disease on hemodialysis presents

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A 55-year-old man with a history of end-stage renal disease on hemodialysis presents to the emergency department with lightheadedness and dizziness. He undergoes dialysis sessions regularly every Monday, Wednesday, and Friday, but he has been told that he has been receiving "lower doses" because his blood pressures have been too low. He is due for dialysis tomorrow. On examination, heart rate is 65 beats/min, blood pressure 87/49 mm Hg, respiratory rate 22 breaths/min, and oxygen saturation 92% while breathing 6-L/min nasal cannula oxygen breaths. His ECG is shown below. While waiting for laboratory results, which of the following is the most appropriate next step in management?

Content Image Magnify Image A. IV calcium chloride, 10% solution B. Initiation of hemodialysis C. IV sodium bicarbonate, 50 mEq/L D. Oral sodium polystyrene, 25 g

Reference no: EM133757509

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