男性患儿,2岁。高热。呼吸困难,双肺散在小水泡音,诊断为支气管肺炎,青霉素试敏(+),宜用() ["氯霉素","四环素","头孢唑啉","磺胺嘧啶","红霉素"]
宫颈粘液检查见羊齿状结晶提示() ["体内无雌、孕激素","体内有一定量的雌激素","体内有一定量的孕激素","体内有一定量的雄激素","体内有一定量的hCG"]
男性,12岁。自幼发现心脏杂音,平素易感冒。查体:胸骨左缘第2肋间收缩期轻震颤及杂音。心脏彩超提示:降主动脉及肺动脉之间可见分流。近2周来感冒后反复出现寒战、高热,无明显胸痛,偶有咳嗽、咳痰。CT检查提示肺动脉内可见赘生物。最有可能的是() ["A.肺部感染","败血症","细菌性心内膜炎","风湿热","上呼吸道感染"]
慢性胰腺炎MRI表现不包括() ["胰腺肿大","胰腺萎缩","胰腺钙化","胰管扩张","胰周淋巴结肿大"]
蛛网膜下腔出血最常见的病因是() ["高血压","血液病","脑动脉粥样硬化","先天性颅内动脉瘤","脑血管畸形"]
腹外疝的斜疝与直疝的鉴别