Patient GC (female, 78 years old) has a diagnosis of heart f…

Pаtient GC (femаle, 78 yeаrs оld) has a diagnоsis оf heart failure with reduced ejection fraction. They are prescribed the following:   Lisinopril 40 mg once daily Bisoprolol 2.5 mg once daily Furosemide 40 mg once in the morning Spironolactone 25 mg once daily   Blood results are as follows: eGFR 75 ml/min/1.73m2 Sodium 141 (137-144 mmol/L) Potassium 4.6 (3.5-5.3 mmol/L) Creatinine 75 (60-110 micromol/L) Blood pressure is 120/80 mmHg They are clinically stable and have attended the heart failure clinic for a routine review. Which action would be MOST APPROPRIATE to optimise their treatment?