[Verified Answer]: 67 year old female fatigue, swollen ankles

67 year old female fatigue, swollen ankles. History of hypertension, type 2 diabetes. Creatinine: 1.8 mg/dL, BUN: 29 mg/dL. Potassium: 5.6 mEq/L, Sodium: 141 mEq/L. Which kidney funtion markers are elevated? What might these findings indicate? What signs or symptoms might you monitor in this patient? How does the potassium level relate to the kidney function?