A 65-year-old male with a long-standing history of type 2 diabetes and hypertension presents with fatigue, lower extremity edema, and a metallic taste in his mouth.
Laboratory results show a GFR of 25 mL/min/1.73 m², serum potassium of 5.8 mEq/L, and BUN of 80 mg/dL.
Which of the following medications that acts on the renal system is most likely contributing to his hyperkalemia?
