问题 问答题 简答题

黄疸病史采集要点。

答案

参考答案:

1.特点(1)病程。(2)起病急性或缓慢发病;进行性,波动性,间歇性或复发性。(3)皮肤巩膜黄染程度(轻、中、重)和色泽(柠檬黄,黄色,黄绿色,深褐色)。(4)是否伴陶土样便。(5)是否伴浓茶色尿或酱油色尿。(6)注意与某些食物摄入过量(胡萝卜,柑桔)或药物(阿托品)引起的皮肤黄染鉴别。2.伴随症状(1)寒战发热,急性周身性感染,与黄疸的关系。(2)腹痛腹绞痛,肝区痛,与黄疸的关系。(3)食欲不振,恶心,呕吐,乏力。(4)体重下降。(5)腹胀,腹围增大,腹部肿块。(6)黑便,血便。(7)皮肤蜘蛛痣,毛细血管扩张,皮疹,皮下出血.,黄色瘤,皮肤瘙痒和搔痕。(8)男性乳腺增生。3.相关疾病和病史(1)传染病史肝炎史或肝炎接触史;输血史;钩端螺旋体病,布氏杆菌病,传染性单核细胞增多症等病史。(2)腹部疾病门脉性肝硬化,胆石症,胆道蛔虫,肝癌,胰腺癌,胆管癌,原发性或继发性胆汁性肝硬化,急性坏死性胰腺炎。(3)严重的周身性感染败血症,急性粟粒性结核。(4)药物史氯丙嗪,异烟肼,利福平,硫脲嘧啶,睾丸酮等;阿的平(引起掌心黄染);毒物接触史:四氯化碳。(5)血液病溶血性贫血,血型不匹配。(6)心血管病右心衰竭,心源性肝硬化,肺梗死。(7)食物摄入史蚕豆,毒菇,大量胡萝卜。(8)结缔组织和免疫性疾病干燥综合征、免疫性肝炎。(9)家族史。

单项选择题
单项选择题

The sudden, dramatic explosion in value of online social media sites like Facebook and Twitter is reminiscent of the rise, about 15 years ago, of the online businesses that created the "dotcom bubble. " The Internet was far less widely used than it is today. Still, visionaries saw the potential for the Internet we have today, so virtual companies sprung up and grew like weeds as investors threw money their way. Some, like Google and Amazon, developed an enduring online presence and lasting financial value. But far too many quickly lost value when it became apparent that their rapid growth wasn’t yielding revenue.

So, how much is Facebook’s network of users really worth The potential is clear—when so many people are gathered in one virtual place, offering so much personal information about themselves, they create an unprecedented platform for targeted advertising. Or they would, if they were on the network to shop. When eBay and Amazon suggest products to their customers, they’re talking to people who’ve already proven that they’re interested in buying similar products. People go on Facebook for a variety of reasons-to catch up with old friends, share pictures, make new acquaintances, and talk, sometimes endlessly, about themselves. Whether they’ll appreciate having their virtual conversations interrupted by advertising, targeted or not, remains unclear.

It’s also unclear whether Facebook will actually be able to share information about its users’ browsing habits with advertisers. Complaints about the ineffectiveness of Facebook’s privacy policies have arisen in multiple countries, part of a larger social concern about how private information gets used on line. In December, the Federal Trade Commission issued a proposed framework that, among other things, would permit Facebook users to block advertisers from accessing information about their online interests. If that framework is implemented and widely used by Facebook subscribers, it could seriously impair the site’s value as a potential platform for targeted marketing.

What is clear is that Goldman Sachs has a significant interest in Facebook’s financial value, at least for the short term. Goldman Sachs’ decision to invest heavily in Facebook has had some interesting impacts. For one thing, the investment has allowed Facebook an opportunity to postpone issuing an IPO. That means that, at least for the moment, Facebook doesn’t yet have to disclose its finances or publicly address investor complaints.

Goldman Sachs’ investment also puts the firm in an ideal position to handle Facebook’s IPO when it eventually is issued, perhaps sometime next year. That, of course, has the potential to generate substantial revenues for Goldman Sachs’ clients. Google’s 2004 IPO raised an initial $1.2 billion for the company. After all the propaganda, Facebook’s IPO can hardly be expected to raise less. However, there remains a significant question as to whether Facebook’s potential for generating income is more virtual than real. If it turns out that Facebook can’t live up to its potential for generating advertising revenue, venture capitalists who invest for the long term may get burned.

Companies like Amazon and Facebook earn their money by()

A. luring more visitors to their sites

B. providing easily accessible services

C. attracting advertisements

D. offering a platform for free conversations