后纵隔最常见的纵隔肿瘤是() ["畸胎瘤","胸腺瘤","心包囊肿","神经源性肿瘤","淋巴源性肿瘤"]
检定、校准、检测依据的非标准方法指什么?举例说明。
男性,46岁,疲倦、盗汗、腹胀2个月。外周血白细胞计数110×109/L,中性0.85,杆状核0.05,最有助于鉴别该病人为类白血病反应或粒细胞性白血病的是() ["贫血","白细胞碱性磷酸酶升高","骨髓增生极度活跃伴原始粒细胞明显增多","脾肿大","抗感染治疗血象无改变"]
急性脓胸拔除闭式引流管主要依据() ["白细胞降至正常","脓腔消失,肺完全膨胀","体温恢复正常","脓汁每日少于50ml","呼吸困难消失"]
急性脓胸经胸穿刺后,脓汁又迅速增多,其适当的治疗方法是() ["增加胸穿次数","加大抗生素用量","胸腔闭式引流","周身支持疗法","开胸手术清除脓汁"]
检定、校准、检测依据的标准方法指什么?举例说明。