承上題，薛先生回診之身體檢查如圖示，血壓 88/65 mmHg；抽血檢查 BUN 45.6 mg/dL、Scr 1.3 mg/dL、eGFR 54.3 mL/min/1.73 m²、Na 139 mmol/L、K 4.3 mmol/L、Ca 2.07 mmol/L、Cl 100 mmol/L、UA 7.3 mg/dL、Mg 0.94 mmol/L、Alb 3.0 g/dL、free T4 0.71 ng/dL (ref 0.89～1.79 ng/dL)、hsTSH 26.85 μIU/mL (ref 0.25～4.00 μIU/mL)。下列敘述何者最適當？