He took out a dozen drops of blood from Gro's wound and dropped them on a clean silver plate. Richard looked up and said to the nobles: "Next, I will take a drop of blood from each of you to compare with Ge. Luo's blood is mixed. This is because there is very little blood in Gro's body now, so we must find someone who can give him a blood transfusion and inject some blood into his body to restore him to health and save him. So each of you Everyone needs to take this test.”
Blood transfusion
Not only not bleeding? Need a blood transfusion
It is indeed a heresy, it is indeed a wizard's spell!
But this is the time to show loyalty.
"Each of us can give blood to the prince!" Someone in the crowd said this, and then many people responded, "Wizard, if you can save Prince Gro, you can use our blood. "
Richard shook his head and said: "Not everyone can do it, only those who meet the requirements can do it."
"Why?" someone in the crowd asked.
"The reason is very simple." Richard took a deep breath, "Blood and blood are not exactly the same. Generally speaking, blood is not a simple red liquid. There are many other substances in it. If some substances are different, blood will produce … Well, it’s toxic, so blood can’t be transfused casually.”
Richard tried his best to explain this in words that a group of people could understand. After all, the other group of people were not the maids, craftsmen, and soldiers who used to be in the palace.
In the palace, no matter how complicated what Richard says, the maids, craftsmen, and soldiers will try hard to understand it. They can cultivate some vague scientific thinking, and then select some of the better people to train and use it.
So if he were in the palace, facing some ordinary soldiers and craftsmen, Richard would talk in more detail, talk about the components of blood, explain plasma, blood cells, etc., and see the other party's reaction.
When facing the maid, she will explain more and talk about the reactions of some specific antigens (agglutinogens) on the surface of red blood cells. For example, the classification of ABO blood types, such as what kind of agglutinogens are present in type A blood, what kind of lectins are in the serum, and what kind of blood should be transfused so that it will not agglutination, cause vascular obstruction and hemolysis, etc. Even if the maid doesn't understand, it doesn't matter, there is nothing wrong with remembering it first.
But now, facing a group of strange nobles, there is obviously no value in cultivating and utilizing them, so Richard is too lazy to explain too much about the scientific knowledge and can just use some simple words to understand them.
But even so, everyone was still stunned, surprised by what Richard said, and then had many doubts.
"Is blood poisonous?"
"How can blood be poisonous?"
"Isn't blood just blood? Why are there other things?"
"Blood..."
This is a disadvantage of not having a detailed explanation, because without the support of a complete system, even if there is one thing that is beyond ordinary people's knowledge, it will immediately arouse more doubts and curiosity. In this case, if you directly describe a complete theory, no matter whether the other party understands it or not, it will definitely shut up the other party.
But now, Richard didn't want to waste any more time to fix anything, and said directly: "You don't need to figure out why the blood is poisonous, you just need to know that there is a reason why I did this. If you don't want Gro to die, just Do as I say, and of course if you want him to die, just treat me as if I didn’t say anything.”
"Forehead… "
Everyone looked at each other, not calm anymore, and finally stepped forward and started blood testing.
Suddenly, Richard thought of something and asked aloud: "By the way, who among you is Gro's close relative? Direct collateral relatives within three generations are included, such as brothers, sisters, cousins, etc."
Everyone was silent for a second, all looking at one person in the crowd.
The one being watched by everyone was a short nobleman. He tried hard to maintain his composure on the surface, looked at Richard and said, "I am, what's wrong?"
"Then you don't need to test the blood." Richard said, paused and said with certainty, "You have been ruled out."
"Ah, why... why?" The other party obviously didn't understand why, as a distant cousin, he became a special existence.
"Are you sure you want me to explain?"
"Um, um..." The other party thought for a while and felt that Richard had really explained it, but he couldn't understand it. He finally shook his head and said, "Forget it."
Richard said: "You are very smart."
"Forehead."
In fact, even if Richard really explained it, the other party really couldn't understand it. Because it involves biological knowledge, it is more complicated than blood type.
Due to the misleading of many movies and TV shows on the modern earth, many people will think that when someone is sick and needs a blood transfusion, blood of the same type can be used from close relatives, preferably immediate relatives, descendants, and parents.
Only in this way can we show the love of father and mother, and the filial piety of children and grandchildren. What's more important is that through this method, you may discover old love stories from many years ago, and then come up with ridiculous stories such as your son is not your biological son, and the nurse is your biological daughter.
But in fact, those who dare to transfuse blood from close relatives under real circumstances can only be said to admire their courage and pity their IQ.
Modern earth medicine has proven that blood transfusions between relatives are extremely dangerous, especially if unprocessed fresh blood is transfused between immediate relatives, graft-versus-host disease (GVHD) may occur. Once it occurs, the mortality rate is as high as 99.9%, and there is basically no need for rescue.
This is because the blood is usually mixed with lymphocytes from the donor. Under normal circumstances, when a patient receives a blood transfusion, the immune organ will promptly identify and eliminate lymphocytes in the foreign blood that are different from his own. However, if it is the blood of close relatives, it cannot be identified due to genetic similarity, and it is assumed to be harmless by default, presenting a pseudo-state of acquired immunodeficiency syndrome (AIDS, that is, AIDS).
As a result, foreign lymphocytes can survive and proliferate in the patient's body, and then attack various tissues and organs of the patient, causing the patient to have fever, rash, diarrhea, swollen lymph glands, hemolytic anemia, etc., and eventually death.
In this regard, Richard didn't want to gamble on his luck and test how lucky Gro was. If you don’t want to do everything right only to end up screwed up by graft-versus-host disease caused by a blood transfusion from a close relative, it’s better not to do it in the first place.
Taking a breath, Richard looked at the silver plate.
At this time, the nobles had already completed blood tests separately, and the results were not very good. Gro's blood should be the relatively rare AB blood type. According to the statistics of modern earth, the rate of this blood type only accounts for 7%, so the people present Only one of them matches.
But it’s not the worst. After all, in addition to the ABO blood group, there are more complex blood group systems, such as Rh blood group system, Hh/Bombay blood group system, Sub-Bombay blood group system, P blood group system, Mitianbao blood group system, etc.
The rarer Ph blood type is called panda blood, and the prevalence of Rh-negative AB blood type is only 0.034%. Even more rare, the prevalence rate of type P blood in the P blood group system (P1, P2, Pk1, Pk2 and p) is less than 0.001%, which is one in 100,000.
If this is really the case, Richard can only think that Gro is unlucky.
Fortunately, Gro is not unlucky enough yet, and there is still hope.
Then the next step is to start preparing for blood transfusion.