75 year old male presents for three months follow up. Patient is being treated with harvoni with gi. He also had a recent echocardiogram (cards) with an LV fraction of 25%. Patient was subsequently started on enestro. Patient other wise says he feels pretty good although fatigued. Recent kidney function shows GFR: 45(GFR:50 six months previously) current meds include lasix 40 mg daily, enestro, cilostazol 100mg daily. Given the information provided above which diagnoses is best supported with clinical evidence as to this patients renal status?