(病例见本刊2013年第7期彩页)应作检查包括:血清免疫球蛋白,血清C3、C4,乙肝病毒核酸定量,抗核抗体,双链DNA抗体,出凝血功能,肾脏病理。患者检查结果如下:补体C3:0.93g/L,补体C4:0.25 g/L,IgG:5.27 g/L,IgA:3.18 g/L,IgM:2.11 g/L。乙肝表面抗原:阳性,乙肝表面抗体:阴性,乙肝抗原:阳性,乙肝抗体:阴性,乙肝核心抗 (See the magazine’s No. 7 case 2013 color pages) should be checked include: serum immunoglobulin, serum C3, C4, hepatitis B virus nucleic acid quantification, anti-nuclear antibodies, double-stranded DNA antibodies, coagulation, renal pathology. Patient examination results were as follows: complement C3: 0.93 g / L, complement C4: 0.25 g / L, IgG: 5.27 g / L, IgA: 3.18 g / L, IgM: 2.11 g / L. Hepatitis B surface antigen: positive, hepatitis B surface antibody: negative, hepatitis B antigen: positive, hepatitis B antibody: negative, hepatitis B core antigen