急性病毒性心肌炎早期不主张应用激素的理由为() ["抑制干扰素合成","抑制抗体产生","抑制肾上腺皮质","避免继发感染","加重心力衰竭"]
病毒性心肌炎的主要致病病毒为() ["风疹病毒","柯萨奇病毒B组","流感病毒","带状疱疹病毒","EB病毒"]
亚急性细菌性心内膜炎并发脑出血的原因是() ["肝功能损害","凝血因子异常","血小板功能障碍","中毒性","感染性脑动脉瘤破裂"]
女性,18岁,一年来逐渐面色苍白、无力。检查:血红蛋白50g/L,白细胞5.0×109/L,血清铁400μg/L。最可能的诊断是() ["巨幼红细胞性贫血","感染性贫血","缺铁性贫血","再生障碍性贫血","溶血性贫血"]
早期应用大剂量长疗程杀菌药治疗亚急性细菌性心内膜炎的理由是() ["保持较高和稳定的血药浓度","消灭血中流动致病菌","消灭隐藏在脾内的致病菌","消灭隐藏于赘生物内高密度的致病菌","减少栓塞,降低血沉"]
简述肾囊肿