某男性患者，51岁，因反复发作性心前区疼痛2年，加剧3小时来急诊就诊。2年前劳累后第一次出现心前区闷痛，持续2～5分钟，休息后或含服硝酸甘油可缓解。此后症状反复发作，3小时前晚饭后散步时突感胸骨下段疼痛，呈持续性，休息和含服硝酸甘油不能缓解，伴全身冷汗，头晕，恶心、呕吐而入院。体查：T37℃，P60次/分，R24次/分，BP90/60mmHg，痛苦面容，自动体位，两肺呼吸音清，HR60次/分，律齐。

患者服用阿斯匹林,起什么治疗作用？　提示：医嘱口服阿斯匹林

A:止痛 B:降低心肌耗氧 C:抑制血小板聚集 D:降低血脂 E:预防血压升高 F:预防感染 G:营养心肌 H:预防出血

阿斯匹林不适用于治疗（）

A:缓解关节痛 B:缓解胃肠绞痛 C:治疗感冒头痛 D:预防术后血栓形成

阿斯匹林过量可引起

A:水杨酸反应 B:锥体外系反应 C:成瘾性 D:高血压症 E:糖皮质激素分泌亢进

阿斯匹林抗血小板作用的机理是

A:激活磷酸二酯酶 B:激活纤溶酶 C:抑制环加氧酶 D:抑制叶酸合成酶 E:抑制凝血酶

第二篇 Scientists Make Sweet Discovering Good news for chocoholics: the treat preferred by millions all over the world is good for you, according to American researchers at the University of California. Chocolate contains substances called flavonoids that can help maintain a healthy heart and good circulation. The researchers have discovered that cocoa acts like aspirin and that eating a bar of chocolate has also been shown to release endorphins in the body: these chemicals help to reduce pain and stress and make you feel happy. The Olmec Indians of Mexico and Central America were the first to grow cocoa beans, in about 1500 BC, and the Mayas ere drinking unsweetened coca hundreds of years before it became fashionable in Europe. In 1544, a delegation of Mayan nobles visited Philip of Spain and gave him jars of cocoa as a gift. Cocoa soon became fashionable in Spain and Portugal. The Spanish were the first to add sugar to their cocoa drink. By the middle of the century, solid chocolate was becoming familiar. In 1765, James Baker opened the first chocolate mill in the United States, introducing chocolate to the average citizen. In 1896, in Switzerland, Daniel Peter had the idea of adding milk in the chocolate-making process and produced the first milk chocolate. Since then, chocolate has grown enormously in popularity. One of the biggest chocolate-eating nations is Britain where the average man, women, and child eats nine kilos of chocolate a year. In fact, chocolate is the number one comfort food and there are more chocoholics in Britain than anywhere else in the world. Researchers warn that although chocolate is good for you, it should be eaten in small quantities—and with no added milk. Why is chocolate good for heart and circulation?

A:It reduces pain and stress. B:It contains substances called flavonoids. C:It releases endorphins in human body. D:It acts like aspirin to protect heart.

第三篇The World’s Best-Selling Medicine Since ancient times, people all over the world have used willow to stop pain. The willow tree contains salicylic acid (水杨酸). This stops pain, but there is one problem. Salicylic acid also hurts the stomach. In 1853, a French scientist made a mixture from willow that did not hurt the stomach. However, his mixture was difficult to make, and he did not try to produce or sell it. In 1897, in Germany, Felix Hoffmann also made a mixture with salicylic acid. He tried it himself first and then gave it to his father because his father was old and in a lot of pain. His father’s pain went away, and the mixture did not hurt his stomach. Hoffmann worked for Bayer, a German company. He showed his new drug to his manager, who tested the drug and found that it worked well. Bayer decided to make the drug. They called it aspirin and put the Bayer name on every pill. Aspirin was an immediate success. Almost everyone has pain of some kind, so aspirin answered a true need. Aspirin was cheap, easy to take, and effective, it also lowered fevers. Aspirin was a wonder drug. At first, Bayer sold the drug through doctors, who then sold it to their patients. In 1915, the company started to sell aspirin in drugstores. In the United States, Bayer had a patent on the drug. Other companies could make similar products and sell them in other countries, but only Bayer could make and sell aspirin in the United States. In time, Bayer could no longer own the name aspirin in the United States. Other companies could make it there, too. However, Bayer aspirin was the most well known, and for many years, it was the market leader. By the 1950s, new painkillers were on the market. Aspirin was no longer the only way to treat pain and reduce fever. Bayer and other companies looked for other drugs to make. However, in the 1970s they got a surprise. Doctors noticed that patients who were taking aspirin had fewer heart attacks than other people. A British researcher named John Vane found the reason aspirin helped to prevent heart attacks. In 1982, he won the Nobel Prize for his research. Doctors started to tell some of their patients to take aspirin every day to prevent heart attacks. It has made life better for the many people who take it. It has also made a lot of money for companies like Bayer that produce and sell it!Bayer aspirin was

A:the only drug with the name “aspirin”. B:the first aspirin sold in the United States. C:not sold in drugstores in 1915. D:not easy to find in drugstores.

第二篇The World’s Best-Selling Medicine Since ancient times, people all over the world have used willow to stop pain. The willow tree contains salicylic acid (水杨酸). This stops pain, but there is one problem. Salicylic acid also hurts the stomach. In 1853, a French scientist made a mixture from willow that did not hurt the stomach. However, his mixture was difficult to make, and he did not try to produce or sell it. In 1897, in Germany, Felix Hoffmann also made a mixture with salicylic acid. He tried it himself first and then gave it to his father because his father was old and in a lot of pain. His father’s pain went away, and the mixture did not hurt his stomach. Hoffmann worked for Bayer, a German company. He showed his new drug to his manager, who tested the drug and found that it worked well. Bayer decided to make the drug. They called it aspirin and put the Bayer name on every pill. Aspirin was an immediate success. Almost everyone has pain of some kind, so aspirin answered a true need. Aspirin was cheap, easy to take, and effective, it also lowered fevers. Aspirin was a wonder drug. At first, Bayer sold the drug through doctors, who then sold it to their patients. In 1915, the company started to sell aspirin in drugstores. In the United States, Bayer had a patent on the drug. Other companies could make similar products and sell them in other countries, but only Bayer could make and sell aspirin in the United States. In time, Bayer could no longer own the name aspirin in the United States. Other companies could make it there, too. However, Bayer aspirin was the most well known, and for many years, it was the market leader. By the 1950s, new painkillers were on the market. Aspirin was no longer the only way to treat pain and reduce fever. Bayer and other companies looked for other drugs to make. However, in the 1970s they got a surprise. Doctors noticed that patients who were taking aspirin had fewer heart attacks than other people. A British researcher named John Vane found the reason aspirin helped to prevent heart attacks. In 1982, he won the Nobel Prize for his research. Doctors started to tell some of their patients to take aspirin every day to prevent heart attacks. It has made life better for the many people who take it. It has also made a lot of money for companies like Bayer that produce and sell it!Bayer aspirin was

A:the only drug with the name “aspirin”. B:the first aspirin sold in the United States. C:not sold in drugstores in 1915. D:not easy to find in drugstores.