题目内容

患者男性，38岁。于饮酒后夜间突发右足第一趾关节剧烈疼痛，不敢行走。既往史:无银屑病、高血压、糖尿病病史。体格检查:体温36.8°C，脉搏75次/分，呼吸20次/分，体重70kg，血压120/80mmHg。面色好，眼睑无水肿，查体右脚无皮肤无破损，第一趾关节红肿。两肺听诊无异常，心音有力、律齐，腹平软，肝脾肋下未触及。实验室检查:血液生化，尿酸(URIC)670μmol/L(参考范围140.0-420.0)，尿素氮(UREA)7.5mmol/L(参考范围1.80-7.50)，肌酐(CREA)90μmol/L(参考范围49-133)，类风湿因子阴性，C反应蛋白(CRP)12mg/L(0-5)，其余指标均在正常范围内。关于尿酸的描述，错误的是:

A. 尿酸是细胞内嘌呤核苷酸分解代谢的产物
B. 尿酸是细胞内嘧啶分解代谢的产物
C. 别嘌呤醇可通过抑制黄嘌呤氧化酶进而抑制尿酸的产生
D. 尿酸溶解度相对较小，高尿酸易形成尿酸盐结晶沉积
E. 尿酸溶解度相对较大，易于从尿中排出

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