Doctor Cai was stunned. Lu Chen's theories sounded plausible, but who could prove that what he said was true?
"Master Lu, since you said that blood transfusions with different blood types are dangerous, how can you be sure which of these people have the same blood as Miss Wei?"
"That's a very good question. To confirm whether their blood is the same as Miss Wei's, we must of course conduct a series of experiments." As he spoke, Lu Chen took out everything he needed.
It was lucky for Wei Cai'er that when the telescope was being manufactured some time ago, the craftsmen had just polished out several high-quality lenses. Lu Chen led the craftsmen to assemble a simple microscope that could magnify 100 times with their bare hands.
Unlike a telescope, this thing is a real artifact in this era, the kind that can definitely subvert people's three views.
He really had no way of determining Wei Caier's blood type, but it didn't matter, as blood type was a man-made concept.
All you have to do is use the microscope in your hand to observe and find the blood that does not precipitate with Wei Caier's blood.
Lu Chen did not explain the specific operation steps in detail to everyone. He just waved to Doctor Cai and others and asked them to come over to help.
The first step was naturally to disinfect the arms of the condemned prisoners. When Lu Chen opened the can of alcohol, everyone craned their heads in curiosity. Some with a keen nose even sniffed and asked, "Is this alcohol?"
Lu Chen explained while putting on gloves: "This is a strong liquor, which has been distilled several times."
Doctor Cai asked, somewhat puzzled, "What's this thing for? Are we asking these condemned prisoners to drink it? Won't it be too painful when we draw their blood?"
"Use cotton balls dipped in this alcohol to wipe their arms. This step is for disinfection. Why disinfection? There are countless invisible insects in the air around us. If these insects are not killed, once the skin is broken, they will burrow into the flesh. This is why wounds fester. Disinfection will reduce the chance of suppuration. Do you understand?"
Obviously, all the imperial doctors had gray beards and were grandfathers, but when Lu Chen was explaining, they were as well-behaved as primary school students, nodding their heads continuously and looking at Lu Chen with admiration.
Seeing their upright attitude, Lu Chen felt he could talk more, so he spoke again: "There are many ways to disinfect. Wiping and soaking with strong alcohol is one, and boiling with water is another. Flame disinfection can also achieve the same effect. Of course, this method is only limited to disinfecting instruments."
As Lu Chen spoke, he took out several slides and began to match them. With Lu Chen's explanation, the prisoners calmed down a lot. Under the guidance of the imperial doctors, they lined up one by one to undergo the matching experiment.
Wei Cai'er really didn't deserve to die. Among the twenty or so death row prisoners, seven or eight of them had the same blood type as her and could receive blood transfusions.
Lu Chen pointed out these people and said, "Okay, follow me in."
After saying this, several people hesitated. Although Lu Chen promised that nothing would happen, no one knew what would happen after they went in.
At this time, Li Zhuo snorted coldly and said, "If you can help Master Lu save the life of the Wei family's daughter, I can decide to pardon your death penalty."
Upon hearing this, several death row prisoners no longer hesitated and rushed to follow Lu Chen into Wei Caier's room.
Lu Chen took out the prepared blood transfusion tools. This thing was actually prepared by him for himself. Whether it was the needle or the blood transfusion hose, it was all collected by more than a dozen craftsmen under him, wasting huge resources.
You have to say that the craftsmen of Da Qi were quite deft. Lu Chen only told them what he wanted, and they were able to find a way to make the needle. Even now, Lu Chen himself couldn't figure out what method they used.
As for the blood transfusion hose, it is said to be made of beef tendon. Lu Chen did not know the specific operating steps. He found that he really had more and more potential to be a leader.
There is nothing much to say about the blood transfusion process. The preliminary work has been done well enough and the whole process went extremely smoothly.
The only thing Lu Chen had to do was to control the amount of blood input. To be honest, although he used a microscope to confirm that the blood of both parties would not show any coagulation phenomenon.
It’s better to be safe than sorry!
What he had to do now was not to wake Miss Wei up immediately, but to ensure that she did not die.
Doctor Cai was by Wei Caier's side throughout the entire process, keeping his fingers on her pulse to check on her condition.
Blood transfusion is really an effective treatment method. As the blood slowly entered Wei Caier's body, her breathing rate began to slow down and her pulse became stronger.
Doctor Cai sat aside, holding his pulse with one hand and his beard with the other. His expression changed from solemn to surprised. After several people took turns giving Wei Caier a blood transfusion and confirmed that Wei Caier did not have any rejection reaction, Lu Chen took Doctor Cai out of the room.
As soon as they came out, before Wei Yong could speak, Li Zhuo beside him couldn't wait to ask: "How is it? What's the situation?"
Imperial Physician Cai bowed hurriedly and said, "Your Majesty, the Wei family's daughter's condition is gradually improving and she is no longer in danger of death. According to my humble opinion, she will wake up after a few more hours of rest."
"Are you serious?!" Wei Yong grabbed Doctor Cai with an anxious look on his face.
If Doctor Cai dared to say no, Wei Yong would probably hit him in the face with his fist.
Doctor Cai was just about to give a positive answer when the maid who was in charge of taking care of Wei Cai'er suddenly rushed out of the room and said, "She's awake, the young lady is awake!"
Everyone looked at Lu Chen in shock. This time it must be a magical technique!
He was clearly a dying man, yet he was brought back to life.
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