男性,35岁,1型糖尿病病史10年,平素应用胰岛素治疗,未监测血糖,此次外出,2天未应用胰岛素,出现乏力,口渴,萎靡,恶心,呕吐,腹痛。于医院就诊时化验血糖20.32mmol/L,尿酮体+++,血气:pH7.01,HCO;5.3mmol/L,血钾3.56mmol/L。该患诊断() ["A.高渗性非酮症糖尿病昏迷","休克","糖尿病酮症酸中毒","乳酸酸中毒","重症感染"]
放大摄影X线管焦点为0.05,允许的最大放大率为() ["3倍","4倍","5倍","6倍","7倍"]
嗜铬细胞瘤,最具特征的临床表现应是() ["焦虑、神经过敏","发作性头痛","胸闷,多汗,心动过速","恶心,呕吐,腹痛","阵发性高血压或持续性高血压阵发性加剧"]
有关X线束、照射野的叙述,错误的是() ["X线球管发射锥形X线束","X线束入射被照体曝光面的大小称照射野","摄影时照射野应尽量大","摄影中的X线束有一定的穿透能力","X线束中心部分的X线为中心线"]
原发性醛固酮增多症最早出现的临床症状是() ["肌无力","周期性麻痹","高血压","夜尿多","心律失常"]
什么叫锰硫比?