Huang Shi watched Hong'er absorb the reagent because she was afraid that she would take the wrong reagent. On the other hand, he answered A Jing's question just now, "This is because using his left hand is the most convenient when collecting blood. Don't take off your clothes, and it's convenient to reach us."

After pausing, he continued, "People's right hand usually needs to work frequently, while their left hand will be less, and their ring fingers are less used, so it is most convenient to use it for blood collection."

"Chief, I understand." A Jing nodded, thinking about the truth, it was really as the leader said.

Hong'er, who was beside her, grinned at the sight of those people being stabbed by Mei Zi with needles, then said, "Plum, can't you be more light?"

"Sister Hong'er, I've already pierced very lightly, but why are they..." Mei Zi was also very aggrieved.

"Then you see, A Jing didn't even do this just now!"

Seeing that Mei Zi had not answered, she showed that she was about to cry. Huang Shi quickly smoothed out the situation in the middle. He had also seen people who were shot by a nurse. "Actually, Mei Zi has done a good job. This thing requires practice to make perfect."

Here he calmed the girl's emotions. Huang Shi looked at the watch and said to A Jing and Hong'er, "It's been five minutes now. You two have arrived at the table and start with us who collected blood. Let's identify their blood types first."

When the child was first tested for blood type, Huangshi had already recorded the start and end time, which took about 5 minutes. And he also heard from Chen Lishui that if the blood type is wrong, first there will be agglutination reaction, and then the blood red blood cells will rupture, which will turn into a hemolytic reaction.

Huangshi has never seen what the hemolysis reaction would look like. If he was on a normal day, he would still do the test with great interest. However, time is urgent now, time is not waiting for anyone, so it is important to test the blood type quickly.

In this way, every 5 minutes, they would stop here, let the two of them go out to compare the time, and then test the results. The result was that after the ten old, weak, sick and disabled, the remaining thirty young and middle-aged people were divided into three batches, but it didn't take long to put together, and it took only about twenty minutes.

After Zhou Damu pressed the last order on the table, he ran back and pointed to the glass piece on the table, "Chief, can I...?"

"Of course," Huang Shixin said that Zhou Damu is really a good comrade. Others are afraid of this scene and reluctant to see it, but he just knows it. Although he looks a little thin now, as a Shandong man, he still has a physical body. His weight should be more than 100 kilograms, so just be a reserve team.

Zhou Damu then sat down in front of the table. Unlike those timid farmers, he followed his distant cousin to the sea since he was sixteen. He originally wanted to save dozens of taels of silver, and in two years he would go back to his hometown to buy land, and marry another wife to live a good life.

Unexpectedly, the shopkeeper heard about the civil unrest in Japan last year, so he asked the sea boat to turn south from this year. As a result, when the boat arrived here, even the people who were brought to Hunjianglong. Zhou Damu was reluctant to let go of the money on his body at that time, so he was beaten and locked up in the Jiang family's dungeon. The money was naturally cheaper than the Jiang family.

It would be difficult to get out after entering, and he was injured by the beatings, and the Jiang family did not treat him, so the wound began to rot. Fortunately, he was lucky and he was dragged to the day when Huangshi attacked Jiangjiazhuang.

At that time, he was thinking in the dungeon whether he could no longer see the rising sun, but would become a wronged soul on the mass grave behind Jiangjiashan like those who died.

When he was rescued, he was extremely thin and his wounds were rotten and smelly. Su Er, who changed his medicine, told him that if he hadn't relied on the leader's "magic medicine", he would have died of it. So from that time on, he regarded Huangshi as a living Bodhisattva who saved the troubles and lives. What this Bodhisattva had to do was not wrong.

...

"Damu, what do you think the leader is going to do?" Ding Er asked Zhou Damu who had just sat next to him.

"I just heard that I need a blood test."

Ding Er looked at the cotton swab stick he was pinched in his hand, "What does this blood test type mean?"

"It seems... this blood test type is to figure out whether your blood is 'a' or 'bo' or 'bo'." Zhou Damu thought for a while. He was standing by listening to their conversation, and he also saw the pinyin letters of "A" and "B" written on paper, but he didn't understand what it meant.

"Ah Bo", Ding Er was even more confused when he heard it.

"It's the 'ah wave' that Mr. Zhang taught." Zhou Damu used his right finger to draw in the air.

"Oh." Ding Er was embarrassed to ask again, so he looked down at his left hand, and there was still a cotton swab in it. He just heard them say that it would take a hundred and eighty times before he could take it off, but he counted several times, and each time he forgot when he counted it to fifty, so he had to count it again.

But I thought it would have been one hundred and eighty times earlier, so he opened the ring finger and big finger of his left hand. Seeing that the blood on the ring finger had already dried up and did not bleed out any more, he threw the cotton swab to the ground.

"Brother, don't throw it on the ground."

"Okay, okay." Ding Er lowered his body and picked up the cotton swabs, because the chief rule was to say "you can't litter" and he had to throw it into the designated "trash can". However, there are no "trash cans" around him now, so he could only hold it in his hand first. However, when he leaned over just now, he clearly found that many people had cotton swabs under their feet.

...

A Jing gathered all the papers on the table, reviewed them again, and after confirming that they were correct, he said, "Chief, you have already checked them."

Huang Shi nodded, "Okay, then you can pick out all those who are Type A."

A Jing responded and turned over dozens of papers again. Because he wrote the letters of the blood type very large, he quickly took out a few of them. After counting them, there were only six people.

After looking through the list in his hand, Huang Shi found that Zhou Damu was also inside, "What kind of blood type do these others have?"

"Chief, these are all 'oh' type, these are 'wave' type, and then these are 'Awave type' type." A Jing replied after sorting the paper.

When Huangshi saw that there were as few people with type B as type A, only six, while there were even fewer people with type A, only two, and the others were all O-type blood. I thought this really fits the blood type distribution ratio of Chinese people.

When he was having dinner with Thorpe and Bai Xiao in Beijing, he heard Bai Xiao say during the meal that according to the survey in "Human Blood Type Genetics", the proportion of ABO blood type among Chinese people is type A accounting for 27.9%, type B accounting for 29.2%, type O accounting for 34.4%, and type A accounting for 8.5%.

Although O-type accounts for more than half now, fortunately, the blood type of the child is not AB type, otherwise only two people can draw blood. Even if you add 200 ml of your own, it is not enough. Now there are six people, and each person only needs to contribute 200 ml, and there is 1,200 ml in it, which is enough to replace half of the blood on the child's body.

Because according to scientific measurements, the total blood volume of a normal person is about 8% of his weight. If a person's weight is 50 kg, the blood volume is about 4,000 ml. A child as big as Awei generally weighs no more than 25 kg, so in the conversion, it is only less than 2,000 ml.

"Hong'er, ask Ajing to pronounce your name, and call them over to the front and let me tell them about donating blood." Huang Shi originally wanted to do this by himself, but felt his legs were weak, so he had to let Hong'er endorse him.

...

"Ding Er."

"Zhou Damu."

When Zhou Damu heard the girl Hong'er calling her name in front of her, he stood up suddenly, but saw that Ding Er, who was sitting next to him, did not move, so he pulled him, "Brother Ding, you're calling you."

"I know, I know." Ding Er stood up reluctantly. He was really afraid of anything he wanted. It was just a blessing or a disaster, but a disaster. He could only bite the bullet and follow Zhou Damu forward.

"Chief, let me give my brother a blood transfusion too."

"It's enough for you to have this heart, but you just saw that you are type B, while your younger brother is type A. I said before that different blood types cannot be transported to each other."

A Jing asked a little depressedly, "Why are my blood types different from my brother?"

Although Huangshi has not been studied, we know that the blood type of children is affected by the parents' blood type, but not every child's blood type may be the same. The possible blood type of offspring and the impossible blood type of offspring are regular.

But he didn't remember what Bai Xiao said at that time, so he comforted A Jing, "I will tell you the truth in this later."

"Okay, Chief." A Jing nodded.

Seeing that Huang Shi was a little weak, Hong'er advised him, "Chief, then don't offer it!"

"I'm fine." Huang Shi felt dizzy now and didn't want to give it to him, for fear that he would faint immediately after he finished pumping 200 ml of blood. However, after he had just said it, he looked at the six people present. Except for Zhou Damu, everyone else was timid and afraid to look at him, and he was also evasive about his questions.
Chapter completed!