单选题男性，右肾结核行右肾切除1年，近日出现尿量逐渐减少，血肌酐及尿素氮逐渐升高，最可能的原因是

单选题心肺复苏时，目前治疗室颤最有效的方法是

单选题Studies from 10 nations reveal that the rates of depression among women are twice as high as they are among men. Do women have a biological bent for depression, or are social double standards the major cause? Mental health workers have long noticed among the clinically depressed women take up a bigger proportion. Until recently, though, it was unclear whether more women than men were ill or, instead, whether more women sought help. In fact, a mounting collection of studies has confirmed that major depression is twice as common among women as it is among men. "This is one of the most consistent findings we have ever had," says Myrna M. Weissman of Columbia University. Scientists searching for explanations are challenged by the fact that a variety of cues prompt depression in different people. Sorting out which factors might have a greater influence on women has not proved easy. Both sexes stand an equal chance of inheriting major depression, so genes are most likely not to blame. Yet hormones and sleep cycles--which differ dramatically between the sexescan alter mood. Also, many workers have proposed that social discrimination might put women under high levels of stress. In 1990 an international group examines mood disorders. In the 10 nations reviewed so far, the team has found that among generations reaching maturity after 1945, depression seems to be on the rise and occurs at a younger age. Although overall incidence varies regionally, "everywhere the rates of depression among women are about twice as high as they are among men," Weissman says. In contrast, lifetime rates for manic-depressive illness do not differ according to sex or culture. Mark S. George and his colleagues at the National Institute of Mental Health (NIMH) recently studied which regions of the brain have greater blood flow during periods of depression. George found that "the brain activity of the men and women of depression looked very different. " He has since compared feelings of anger, anxiety and happiness, finding no such big a difference. Because one in five American women has a history of depression, especially as they often pursue therapy from other sources, sometimes on top of an anti-depressant clinic. Says Leibenluft: "It is remarkable how little work has been done on this subject. /

单选题关于骨与关节化脓性感染，下列哪项是错误的

单选题A．普鲁卡因 B．丁卡因C．利多卡因 D．布比卡因E．氯胺酮

单选题一位术后贫血合并有心功能不全的老年病人，输入以下何种血细胞制品最恰当( )(1996年)

单选题A．呼吸困难和窒息 B．喉上神经损伤C．喉返神经损伤 D．甲状腺危象

单选题男性患者，36岁，浮肿、少尿1个月，鼻出血3天，查体贫血貌，血压160／90mmHg，Hb 80g／L，尿蛋白(++)，尿潜血(++)，尿RBC 6～8个／HP，血肌酐846μmoL／L，B超左肾9.1cm×4.1cm×4.2cm，右肾8.6cm×4.3cm×4.1cm，最可能的诊断是

单选题目前对小细胞癌主张

单选题患者，男，35岁。左腰部受伤后出现腰痛。体检：血压125／90mmHg，脉搏80次／分，左肾Ⅸ叩痛(+)，腹膜刺激征(－)。尿常规检查：红细胞5～10个／HP。该患者最可能的诊断是

单选题患者男性，40岁，车工，因近两个月来经常加班劳动而引起腰背痛及活动障碍，约5日前又扭伤腰部，疼痛加剧，且向右下肢后侧放散，每于弯腰、咳嗽及用力排便时加重。脊髓造影显示L4、5间盘水平偏右见一圆形压迹，最可能的诊断是：

单选题男性，14岁，8个月前开始左上臂肿胀、疼痛，入院诊断为左肱骨上端骨肉瘤，优选的治疗方案是A．左肩关节离断术B．肿瘤刮除术C．术前化疗-根治性切除-术后化疗D．化疗E．化疗加放疗

单选题A．急性肾损伤B．慢性肾衰竭C．两者均有D．两者均无

单选题男，产后14天。患儿拒饮奶，稍咳嗽，张口困难，颈强，体温38℃，四肢无抽搐，腹肌稍紧张，无压痛，脐部流脓水。该患儿的主要诊断是

单选题 图示骨折，最常见的并发症是 ( ) A、肱骨下端缺血性坏死 B、损伤性休克 C、血管神经损伤 D、骨折局部感染 E、脂肪栓塞

单选题一位肠梗阻患者，恶心、呕吐、少尿、尿比重增高，眼窝凹陷，肢端湿冷，血压偏低，血清Na + 正常。首选的补液种类应是( )(2009年)

单选题关于胃大部切除术后十二指肠残端破裂的叙述，下列哪项不恰当

单选题下列描述中，哪一项符合弥漫性毛细血管内增生性肾小球肾炎A．系膜细胞和内皮细胞增生B．系膜细胞和基质增生C．壁层上皮细胞增生D．毛细血管壁呈双轨状E．毛细血管壁增厚显著

单选题输尿管结石最多见的停留部位是

单选题男性患者，55岁，嗜酒，有“胃病史”多年。2天前饱餐后突发上腹剧痛，恶心、呕吐10余次，呕吐后腹痛不能缓解。入院体检：血压90／65mmHg，心率100次／分。腹胀明显，左上腹及剑突下压痛反跳痛明显。血白细胞20×10 9 ／L，中性粒细胞0．92，血K + 5mmool／L，Na + 145mmol／L，Ca 2+ 56mmol／L，血淀粉酶250U／dl(Somogyi法)。本例最可能的诊断是