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[名词解释] 边界异物

已知碘锐特在流经肾循环后可被完全清除,给某人静脉注射碘锐特后,肾每分钟可将660ml血浆中碘锐特完全清除,该数值等于() ["肾小球滤过率","肾血流量","肾血浆流量","肾小管分泌率","肾小管重吸收率"] 48岁,女性,突然胸闷痛,心悸,心电图示V1~3有深而宽的Q波,ST段抬高,伴有室性早搏、二联律形成,抢救中突然抽搐,最可能的原因是() ["Ⅲ度房室传导阻滞","心室颤动","心脏停搏","心房颤动","室性心动过速"] 女性,32岁。因不明原因发热2周来院门诊。体检:心脏有杂音。拟诊感染性心内膜炎入院感染性心内膜炎,最常发生于下列哪种情况(). ["A.心脏正常的吸毒者","先心病室间隔缺损","先心病房缺","肺源性心脏病","风湿性瓣膜病"] 枸橼酸盐试验阳性时,不应为() ["细菌生长pH改变","细菌生长产碱","细菌生长产酸","含溴麝香草酚蓝的培养基变蓝","细菌以枸橼酸盐为惟一碳源"] 急性间质性肾炎患者出现急性肾损害时,其尿液渗透压表现为() ["正常渗透压尿","高渗透压尿","低渗透压尿","高渗透压尿、低渗透压尿均可出现","以上均可出现"] 边界异物
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