男性,40岁,某蓄电池厂工人,因持续性腹绞痛,阵发性加剧而入院。患者自诉近5年来经常有腹绞痛发作,部位多在脐周,发作时尚能坚持工作。但近1年来,腹痛发作频繁,发作时大汗淋漓,面色苍白,在地上打滚,并伴有头痛、头昏、乏力、关节酸痛。查体:一般情况尚可,体温正常,面色苍白,牙龈有色素沉着,眼底动脉痉挛,腹部平软,肝脾未扪及,肠鸣音正常,诊断为慢性铅中毒对职业性铅中毒的预防措施最有效的是()
A. 上岗前健康检查
B. 消除和控制生产环境中铅的浓度
C. 合理使用防毒用具
D. 加强健康教育
E. 加强健康监护
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患者男,64岁。间断右上腹疼痛4个月。患者4个月前无明显诱因出现间断右上腹部绞痛,无恶心呕吐,无腹泻,无发热,数小时后腹痛自行缓解。发病以来食欲尚可,大小便正常,体重减轻3kg。查体:一般状态尚可,睑结膜苍白,浅表淋巴结无肿大,心肺查体未见异常,腹平软,肝脾肋下未触及,肝区无叩痛,全腹无压痛,右上腹可触及一鸡蛋大小的包块,质硬,表面光滑,无压痛,活动度好。为明确诊断,首先需行哪些检查()。
A. 胃镜
B. 结肠镜
C. 便细菌培养
D. 腹部超声或CT
E. 立位腹平片
F. 腹部血管彩超
下列哪项是微粒子化学发光免疫分析的放大系统()
ALP与4-MUP
B. ALP与4甲基伞酮-β-半乳糖苷
C. HRP与4-MUP
D. ALP与AMPPD
E. HRP与AMPPD
Your network consists of a single Active Directory domain. All servers run Windows Server 2008 R2. You need to recommend a Group Policy deployment strategy. Your strategy must support the following requirements: èDomain-level Group Policy objects (GPOs) must not be overwritten by organizational unit (OU) level GPOs. èOU-level GPOs must not apply to members of the Server Operators group. What should you recommend?()
A. Enable Block Inheritance for the domain,and then modify the permissions of all GPOs linked to OUs.
B. Enable Block Inheritance for the domain, and then enable Loopback Processing policy mode. Add the Server Operators group to the Restricted Groups list.
C. Set all domain level GPOs to Enforced, and then modify the permissions of the GPOs that are linked to OUs.
D. Set all domain level GPOs to Enforced,and then enable Loopback Processing policy mode.Add the server Operators group to the Restricted Groups list.
患者男,23岁。因首次出现少语、少动、进食少半个月,加重3天入院。既往体健。患者在半个月前与女友分手后缓慢起病,讲话少,不主动与家人讲话,活动减少,基本不出门,有时见患者在自己房间里发呆,进食量比以前减少。近3天来,患者病情加重,不语不动不进食而被家人送入院。7天前有头痛、咳嗽史,体温37.8℃。进一步追问病史,患者既往无躁狂发作,查及自杀观念,睡眠欠佳,对此患者可采取的治疗措施哪些合适()
A. 可行电休克治疗
B. 可用SSRI类药物治疗
C. 可用三环类抗抑郁药
D. 碳酸锂
E. 甲状腺素片
F. 钙通道拮抗剂
G. 静脉输液维持水电解质平衡
H. 抗精神病药物治疗
I. 丙戊酸钠