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A 51-year-old woman presents to the emergency department with a 2-day history of bilateral lower extremity swelling. She says that her legs do not hurt, but she noticed she was gaining weight and her legs were becoming larger. Her past medical history is significant for morbid obesity, hypertension, and hypercholesterolemia. She says the swelling started after she was recently started on a new medication to help her blood pressure, but she does not remember the name of the medication. Which of the following is most likely the mechanism of action for the drug that was prescribed to this patient?

A 58-year-old male with a history of congestive heart failure and hypertension comes to you with the chief complaint of new-onset cough as well as increased serum potassium in the setting of a new medication. Which of the following medications is most likely responsible for these findings?