男，70岁，肺结核患者，咯血痰2天，今晚突然大咯血、鲜血从口鼻涌出。因害怕出血．患者极力屏气，压制咯血，随即出现烦躁不安，挣扎坐起，极度呼吸困难，额面青紫，表情恐怖，大汗淋漓，双眼上翻。共用题干
该患者如需要输血，应依据
A．血红蛋白测定
B．血压
C．脉搏
D．咯血量
E．呼吸频率
参考答案：A
解析：应根据血红蛋白的高低决定是否输血，因咯血量并不等于失血量，还有一部分血液残留在气道内。血压、脉搏和呼吸频率经输液等处理后均可正常，不能作为输血的依据。
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| When it comes to eating smart for your heart, thinking about short-term fixes and simplify your life with a straightforward approach that will serve you well for years to come. Smart eating goes beyond analyzing every bite of food you lift 1 your mouth. "In the past we used to believe that 2 amounts of individual nutrients (营养物) were the 3 to good health," says Linda Van Horn, chair of the American Heart Association's Nutrition Committee. "But now we have a 4 understanding of healthy eating and the kinds of food necessary to 5 not only heart disease but disease 6 general," she adds. Scientists now 7 on the broader picture of the balance of food eaten 8 several days or a week 9 than on the number of milligrams (毫克) of this or that 10 at each meal. Fruits, vegetables and whole grains, for example, provide nutrients and plant-based compounds 11 for good health. "The more we learn, the more 12 we are by the wealth of essential substances they 13 ," Van Horn continues, "and how they 14 with each other to keep us healthy." You'll automatically be 15 the right heart-healthy track if vegetables, fruits and whole grains make 16 three quarters of the food on your dinner plate. 17 in the remaining one quarter with lean meat or chicken, fish or eggs. The foods you choose to eat as well as those you choose to 18 clearly contribute to your well-being. Without a 19 each of the small decisions you make in this realm can make a big 20 on your health in the years to come. | |||
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