问题
单项选择题
一位病人输血约40ml时发生寒战、发热、呼吸闲难、腰痛等症状，通常提示
A．溶血反应
B．非溶血性发热反应
C．细菌污染
D．变态反应
E．枸橼酸盐的毒性
答案
参考答案：A
解析：[解释] 发热反应多在输血后1～2小时内，伴皮肤潮红、头痛等。一般1～2小时后缓解。当血液污染时，轻者如发热反应，重者仅输入10～20ml血，就可发生严重休克。在出现变态反应时病人常出现皮肤红斑、荨麻疹、瘙痒等症状。而枸橼酸盐的毒性表现是代谢性碱中毒。
When she flew into Athens on an unseasonably cold day in September, she quickly realized that she hadn’t brought enough warm clothes. Walking through the streets of the Greek capital, she happened to see a nice coat in a shop window and went in to ask about the price. The coat was too expensive, but as Christine was about to leave the shop, the woman asked her where she was from. When Christine answered Australia, the woman agreed to reduce the price because she knew a nice girl from Australia called Elena. Christine then noticed a photo of a young man standing next to a motorbike. Her eyes opened wide with astonishment. It was Nicos! Indeed the young man was Nicos, and the woman in the shop was Maria. She had come to Athens from Santorini to look after the shop for a friend.