I also comment on some medications used by a number of blood donors, although wounds, ulcers and surgery are not included. Considering the panorama of conditions blood donors can suffer from, blood donation can never be completely safe for everybody, as zero risk does not exist, but it is ...
Blood is important to support our lives. But for now, the only way we can get more of it is through donation. And donated blood has its own problems. First of all, certain blood types are extremely rare. Type O negative blood (O-), for example, only 【小题1】(exist) in 7 percent...
It is safe to donate blood. In China, for example, people can donate blood once per six months. A donor must be at least 18 years old and in good health.It is very important that every person should understand the great importance of blood donation. Often, every few millilitres (毫升)...
For most blood donations, people hear about whole blood donation. This is blood that contains red blood cells, white blood cells, platelets, and plasma. However, the different cells and substances in the blood can be separated and donated individually. While red blood cell transfusions usually ...
Modern phlebotomy aims to remove a minimal amount of blood through a needle inserted into the vein. In the case of blood donation, people can get a sense of what therapeutic bloodletting might have been like. However, most blood donors donate less blood than bloodletting would have removed, an...
Once, on a cold winter of 2009, Guo got a call from the hospital. The doctors told him that a patient needed a blood donation. Guo didn’t have time to eat lunch. He travelled in the snow to get to the hospital. When he finished donating the blood, he was so tired that he fell...
Medical workers ask donors several questions to make sure the blood is safe to use. Then the donors relax, often reading a magazine or talking as their blood is drawn. Afterward, the donors may receive some juice or water and maybe fruit to give them energy. The process is simple, not ...
___Medical workers ask donors several questions to make sure the blood is safe touse.Thenthedonorsrelax,oftenreadingamagazineortalkingastheirbloodisdrawn.Afterward,thedonorsmayreceive some juice or water and maybe fruit to give them energy. The process is simple,notscary.___Togiveblood,apersonmus...
Once,___the cold winter of 2009, Guo got a call from the hospital. The doctors told him that a patient needed a___donation. Guo didn’t have time to have lunch. He traveled in the snow to___the hospital. When he finished donating the blood, he was___tired that he fell asleep ...
In addition, donated blood comes from various people, which means that it has to 【3】 (examine) carefully for diseases such as HIV to make sure that it’s safe for transfusion(输血). This is__【4】 scientists all over the world have been trying to make blood in labs. And now, some...