1. A patient with chronic heart failure is prescribed a medication that inhibits the renin-angiotensin-aldosterone system (RAAS). Which of the following drugs is the patient most likely taking? - A. Atenolol - B. Furosemide - C. Lisinopril - D. Amlodipine Correct Answer: C. Lisinopril Rationale: Lisinopril is an ACE inhibitor that blocks the conversion of angiotensin I to angiotensin II, a key component of the RAAS, which is often activated in heart failure. 2. A nurse is caring for a patient who is on chemotherapy and develops neutropenia. Which pathopharmacological approach is most appropriate for this patient? - A. Administration of erythropoietin - B. Administration of colony-stimulating factors - C. Increase in platelet transfusion - D. Initiation of antibiotic prophylaxis