There is a method of identifying relatives by dropping blood in ancient China, although this method is an extremely unscientific method from a modern point of view, after all, the complexity of DNA cannot be identified by this simple method.

But in fact, in modern medicine, in a sense, this method can be used to preliminarily screen the same blood group, which is called hemolysis. However, there is also a great risk of relying on hemolysis alone, but now with the light microscope of the medical laboratory, it is possible to find the approximate same blood type, and the risk is minimized.

Unless it is Cassel's bad luck and it is a rare blood type such as RN negative, otherwise according to this method, the problem of blood transfusion rescue is basically solved. As for whether the other infections can survive, it depends on Cassel's luck.

So at this time, Duke said directly to Vesalius: "Vesalius, since you have studied blood types, you should know that there are also cells in the blood. Blood transfusions are indeed a way to save Casso's life, but if the cells in the blood do not fuse, it is a life. ”

"So now I have to take out a blood sample from everybody and fuse it with Cassel's blood, and if you see the cells under the microscope that the cells are starting to fuse, it means that the person's blood type is the same as Cassel's, and the blood transfusion requirements are met. The kind of animal experiments you mentioned earlier about dying after blood transfusions will not happen.

Hearing Duke's words, Vesalius's face was full of shock, he had no idea that everyone's blood would be different, and he didn't think that he could use a microscope to observe the fusion of cells in the blood to avoid this rejection.

It seems that the lord is really an omniscient genius, and the results of his research for most of the year have already been known to the lord.

But now is not the time to be shocked, the approaching Grim Reaper is slowly approaching Cassel, and if he doesn't supply blood quickly, he will die directly from excessive blood loss.

With Duke's method, the entire medical lab took a sample of their own blood and had Vesalius fuse it with Cassel's blood under the microscope.

Under the camera, Vesalius really saw the kind of cell fusion and rejection that Zhang Nan said, which surprised him very much, and it can also be said to open the door to another medical world, which will also provide an insightful argument basis for Vesalius's blood circulation theory.

After Vesalius's comparison, the red blood cells of Zhang Nan and the other two medical students were able to fuse with Cassel's blood.

As soon as he heard such a result, Duke did not hesitate at all, directly rolled up his sleeves, and said to Vesalius: "Hurry up and draw my blood, Cassel is about to lose his support." ”

Because Duke had been closely watching Cassel's situation when he was comparing his blood types in Vesalius. Not only is his entire face pale now, but the skin in the rest of his body has appeared a terrifying paleness, which means that the blood flow in his body has reached a very terrifying stage, even if it is to stop the bleeding with sutures, it cannot suppress the flow of life.

At the same time, Cassel's heartbeat and body temperature began to drop rapidly, with Duke's understanding of later medicine, let alone in this era, even if it is a later generation with developed medical technology, Cassel is estimated to have issued a critical illness notice in the emergency room, which can be said to be only one step away from death.

However, Vesarus did not listen to Duke's words, and asked him to have a blood transfusion first, because Duke is the backbone of the entire Storm Castle, and this blood transfusion technology has not been verified by sufficient human experiments after all, so there are various unknown risks.

Vesalius couldn't afford to risk something happen to Duke, and it could even be said that even if Cassel died, he couldn't let Duke have an accident, after all, Lord Lords represent the future and survival of Stormcastle.

So after Veisalius directly sterilized the needles with fire, he chose two other medical students to carry out blood transfusions. Vesalius's blood transfusion method was not the blood bag of later generations, and then slowly entered Cassel's blood vessels through a syringe.

Vesarius took the most primitive direct current method, that is, using a hollow tube to connect the blood vessels of two people, and then one person raised his arm high, with the help of gravity, to transport blood to Cassel's blood vessels. At the same time, because Cassel lost too much blood, the strength of his blood pressure was much lower than that of a blood donor, so he didn't have to worry about any reflux under negative pressure.

Seeing the blood of blood entering Cassel's body, everyone present looked very solemn, after all, this is a groundbreaking medical feat in this era, not only because of Cassel's life, if this blood transfusion technology can really be successful, then it may save countless lives in the future.

Some time after the first medical student was transported, Vesarius pulled the needle from behind him and prepared to change the blood transfusion to another medical student. Because Veisalius had learned about the importance of blood to the body, previous animal experiments had also known how much blood to deliver so that it would not affect human health.

This is just like blood donation in later generations, which is generally in the range of 200cc to 400cc. If this range is exceeded, anemia will occur in the blood donor.

It's just that the blood lost from Cassel's body is too much, even if the second medical student donates blood to reach the upper limit of physical safety, Cassel's body still does not subside, and even if the wound is stitched up, the bleeding in a short time is unavoidable.

Seeing this, the first medical student pulled up his sleeve again, intending to grit his teeth and transfuse again, but at this time, Duke stretched out his hand to stop him.

"That's enough, let me do it. You are also a valuable talent of Stormcastle, and in the future, you medical students will save countless lives, and your health is important. ”

Hearing Duke say this, Vaisarius wanted to stop him, but Duke preemptively said: "Vaisarius, don't say anything, since I am the lord of Storm Castle, then everyone is my people, and I should also fulfill my responsibility as a lord." And this blood donation won't affect me very much, don't worry. ”

As a person who has experienced modern medicine, Duke does not have the fear and resistance of the people of this era to donate blood. He knew that it would not affect his health if it was safe, and that Duke had donated blood in his previous life.

The two medical students just now visually measured that they had donated at least 400CC or more, and if they had to draw blood, it would cause their own blood loss. Being able to stay in the medical laboratory of Vesalius shows that the two medical students must also be his favorite students.

It can be said that the future development of medicine in this world lies in this group of people, and Duke doesn't want to save one, but lose the other, it's better to let himself go!