符合左心房肥大标准的是 A.Rv1振幅为1.2mV,Rv5振幅为3.0mV B.

题型:单项选择题

问题:

符合左心房肥大标准的是

A.Rv1振幅为1.2mV,Rv5振幅为3.0mV
B.Rv5+Sv1振幅为5.0mV
C.PⅡ、Ⅲ、aVF振幅为0.35mV,Ptfv1绝对值为0.05mm·s
D.Ⅱ、Ⅲ、aVF导联P波时限为0.12s,可见切迹
E.额面QRS心电轴为+110°,V1导联QRS波群呈rsR’型,V5导联S波增宽且R/S<1,R’v1振幅为1.9mV

考点:心电学技术(主管技师)心电学专业知识心电学技术专业知识
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全口义齿制作中托的主要作用是()

A.便于排牙

B.恢复垂直距离

C.颌位记录

D.恢复面部外形

E.确定平面

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慢性呼吸衰竭控制性氧疗法哪项是正确的()

A.Ⅱ型呼衰吸氧浓度应高

B.Ⅰ型呼衰吸氧浓度应低

C.Ⅰ型呼衰氧流量2L/min

D.Ⅱ型呼衰宜低流量(1-2L/min)的浓度持续给氧

E.Ⅱ型呼衰应高流量间断给氧

题型:单项选择题

口服特比萘芬治疗甲真菌病,不正确的描述是()

A.具有杀真菌作用

B.对皮肤癣菌尤佳

C.必须在饭后服药

D.抑制角鲨烯环氧化酶,双重阻断细胞膜合成

E.复发率低

题型:单项选择题

雷丸治疗绦虫病,其内服用法是()

A.久煎

B.后下

C.入丸、散剂

D.另煎兑服

E.熬膏

题型:单项选择题

A pair of dice, rolled again and again, will eventually produce two sixes. Similarly, the virus that causes influenza is constantly changing at random and, one day, will mutate in a way that will enable it to infect billions of people, and to kill millions. Many experts now believe a global outbreak of pandemic flu is overdue, and that the next one could be as bad as the one in 1918, which killed somewhere between 25m and 50m people. Today however, advances in medicine offer real hope that another such outbreak can be contained-if governments start preparing now.

New research published this week suggests that a relatively small stockpile of an antiviral drug-as little as 3m doses--could be enough to limit sharply a flu pandemic if the drugs were deployed quickly to people in the area surrounding the initial outbreak. The drug’s manufacturer, Roche, is talking to the World Health Organisation about donating such a stockpile.

This is good news. But much more needs to be done, especially with a nasty strain of avian flu spreading in Asia which could mutate into a threat to humans. Since the SARS outbreak in 2003 a few countries have developed plans in preparation for similar episodes. But progress has been shamefully patchy, and there is still far too little international coordination.

A global stockpile of drugs alone would not be much use without an adequate system of surveillance to identify early cases and a way of delivering treatment quickly, If an outbreak occurred in a border region, for example, a swift response would most likely depend on prior agreements between different countries about quarantine and containment.

Reaching such agreements is rarely easy, but that makes the task all the more urgent, Rich countries tend to be better prepared than poor ones, but this should be no consolation to them. Flu does not respect borders. It is in everyone’s interest to make sure that developing countries, especially in Asia, are also well prepared. Many may bridle at interference from outside. But if richer nations were willing to donate anti-viral drugs and guarantee a supply of any vaccine that becomes available, poorer nations might be willing to reach agreements over surveillance and preparedness.

Simply sorting out a few details now will have lives (and recriminations) later. Will there be enough ventilators, makes and drugs Where will people be treated if the hospitals overflow Will food be delivered as normal Too many countries have no answers to these questions.

The speed of remedy dispatch is of importance to ()

A. the recovery of the infected patient

B. the treatment of the ailing sufferer

C. the prevention of a flu pandemic

D. the efficiency of large supply of drugs

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