Q. A 59-year-old man with a history of hypertension and diabetes presents to your primary care clinic complaining of swelling in the lower extremities, increased urination at night, and fatigue for the past few months. His temperature is 98.6°F (37°C), pulse is 90 beats per minute, blood pressure is 140/90 mmHg, and respiratory rate is 14 per minute. On physical examination, bilateral pitting pedal edema is present. Laboratory tests show proteinuria and elevated serum creatinine levels. What is the most likely diagnosis for this patient?