下列关于类风湿因子说法正确的是（） -题库考试答案搜索网

下列关于类风湿因子说法正确的是（）

单选题

2021-09-10 01:59

A、在大部分正常人类风湿因子可以出现低滴度阳性
B、其滴度与类风湿关节炎病情活动性、严重性无关
C、是属于IgM型的自身抗体
D、在某些慢性感染性疾病及恶性肿瘤的患者血清中可出现阳性
E、类风湿因子阴性可以排除类风湿关节炎的诊断

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正确答案

D

试题解析

临床常规检测的类风湿因子是IgM型，除此外还有IgA和IgG型。其数量与类风湿关节炎病情的活动性和严重程度成正比。类风湿因子在5％的正常人及慢性感染性疾病、恶性肿瘤和其他自身免疫性疾病中均可阳性。

标签：内科北京住院医师康复医学Ⅰ阶段风湿免疫科皮肤科住院医师

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