81. 一位38歲男性，non-DM, non-obese, 也沒有早發性心血管疾病的家族史。卻因為急性冠心症接受心導管手術與放置兩根支架。住院後檢查結果如下: BP 142/90 mmHg, HR 86/min and regular, pedal edema(2+), t-Chol 400 mg/dL, LDL 285 mg/dL, albumin 2.8 g/dL, AST 40 IU/L, ALT 38 IU/L, creatinine 1.2mg/dL, HbA1C 6.8%, WBC 7400/mm3。為了進一步探查病因，您會優先安排以下哪種檢查？
(A) Serum protein electrophoresis
(B) Urine protein electrophoresis
(C) Urine albumin/creatinine ratio
(D) Urine total protein/creatinine ratio
(E) Hs-CRP, ANA (antinuclear antibody)