人们常称“O”型血为“万能血型”,意思是不管需要输血的病人是属于哪一种血型,都可以接受“O”型血。事实上,在输血之前必须进行验血,必须验明输血者和被输血者的血型各是什么,才能进行,否则因血型不一,输血后会造成生命危 People often call “O” type blood “all-purpose blood type”, which means that “O” type blood can be accepted regardless of the type of blood that the patient in need of blood transfusion belongs to. In fact, blood tests must be performed prior to blood transfusion, and it is necessary to verify what is the blood type of the blood transfusion recipients and the blood transfusion recipients. Otherwise, blood transfusions cause life-threatening