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Huang Shi watched Hong'er absorb the reagent, because he was afraid that she would take the wrong reagent, and on the other hand, he answered Ah Jing's question just now, "This, because it is the most convenient to use your left hand when collecting blood, and it is convenient to take off your clothes, and it is convenient to reach in front of us." ”

After a pause, he continued, "The right hand of a person is generally a regular worker, but the left hand is less and the ring finger is less used, so it is most convenient to use it to collect blood." ”

"Chief, I see." Ah Jing nodded, thinking that the truth was really as the chief said.

Hong'er on the side saw that those people were pierced by Meizi with needles, and said, "Meizi, won't you pierce it lightly?" ”

"Sister Hong'er, I've already pierced it very lightly, but what are they doing ......?" said Meizi, who was also aggrieved.

"Then you see Ah Jing, he won't be like this just now!"

Seeing that Meizi hadn't answered yet, but he looked like he was about to cry, Huang Shi hurriedly made a round in the middle, and he had seen people who were injected by the nurse and cried, "Actually, Meizi has done a good job, and this thing needs practice to make perfect." ”

After calming the little girl's emotions, Huang Shi looked at his watch and said to Ah Jing and Hong'er, "It's been five minutes now, you two go to the table, start with our earliest blood collectors, and identify their blood types first." ”

When the blood group test was first performed on children, Huangshi had already recorded the start and end times, which took about 5 minutes. And he also heard Chen Lishui say that if the blood type is wrong, first there will be a agglutination reaction, then the red blood cells will rupture, and then it will become a hemolytic reaction.

What the hemolytic reaction will look like, Huang Shi has never seen it, if it is on a normal day, he will still be interested in doing a test, but now the time is urgent, that is, time is not waiting, and it is the right thing to test the blood type as soon as possible.

In this way, every 5 minutes or so, they would stop and let the two of them go out to compare the time, and then test the results. As a result, after excluding a dozen or so old, weak, sick and disabled, the remaining thirty or so young adults were divided into three batches, but the total time did not take long, and it only took about twenty minutes.

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

"Absolutely." Huang Shixin said that Zhou Damu is really a good comrade, and others are afraid and reluctant to see this scene, but he knows the difficulties. Although he looks a little thin now, as a Shandong man, his physique is still there, and his weight should be more than 100 pounds, so let's be a reserve.

Zhou Damu then sat down at the table, unlike those timid Zhuang families, he has followed his distant cousin to the sea since he was sixteen years old, originally wanted to save dozens of taels of silver, and then return to his hometown to buy land in two years, and then marry a daughter-in-law to live a good life.

Where did you think that the shopkeeper heard about the civil strife last year, and since this year, he has asked the sea ship to turn south and go south to Bo Ni, but the ship has come here, and even the boat and the people have been fed to the mixed river dragon. And Zhou Damu was reluctant to give up the money on his body at that time, so he was beaten after saying a few more words, and was imprisoned in the dungeon of the Jiang family, and the silver money was naturally cheaper for the Jiang family.

It was difficult to get in and get out, and he still had a beaten wound on his body, and the Jiang family didn't treat him, so the wound began to rot, but fortunately, his life was big, and he was dragged until the day when Huangshi attacked Jiangjiazhuang.

He was in the dungeon at that time, wondering if he would never be able to see the rising sun again, and would become a ghost on the mass grave behind Jiangjiashan like those who died inside.

At that time, he was emaciated when he was rescued, and the wounds on his body were rotten and stinky, and Su Er, who changed the dressing for him, told him that if it weren't for the chief's "miracle medicine", he was afraid that he would also die. So from that time on, he regarded Huangshi as a living bodhisattva who saved lives and saved lives, and there would be something wrong with what this bodhisattva had to do.

……

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

"I heard that there is a blood type test."

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

"It's like...... This blood type test is to find out whether your blood is 'ah' or 'wave' or something. Zhou Damu thought about it, he was standing on the side just now listening to their conversation, and at the same time, he saw Ah Jing writing the pinyin letters of "A" and "B" on the paper, but he didn't figure out what it meant.

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

"It's the 'Ah Bo' that Mr. Zhang taught." Zhou Damu drew in the air with his right finger.

"Uh-oh." Ding Er was embarrassed to ask again, so he looked down at his left hand, where there was still a cotton swab, just now I heard them say that this had to be counted to one hundred and eighty times before it could be removed, but he counted it several times, and each time he forgot it when he counted to more than fifty, so he had to count it again.

But he thought that it must have been one hundred and eighty strokes earlier, so he opened the ring finger and the big finger of his left hand, and saw that the blood on the ring finger had already dried up, and there was no more bleeding, so 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 swab, because the chief's rule was that "no littering" and that he should throw it into the designated "trash can", but now there is no "trash can" around here, so he can only hold it in his hand first, but when he leaned over just now, he clearly found that many people had cotton swabs under their feet.

……

Ah Jing gathered all the papers on the table, checked it again, and after confirming that it was correct, he said, "Chief, everything has been tested." ”

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

Ah Jing answered, and turned over the dozens of pieces of paper again, because he wrote the letters of the blood type very large, so he quickly pulled out a few of them, and there were only six people in the inventory.

Flipping through the list in his hand, Huang Shi found that Zhou Damu was actually inside, "What blood type are these other people in?" ”

"Chief, these are 'oh' types, these are 'wave' types, and then these are 'Awa types'." Ah Jing replied after sorting the paper again.

Huangshi looked at it, sure enough, there are as few people as type B and type A people, only six, and there are even fewer people with type AB, only two, and the rest of the people are all type O blood, thinking that this is really in line with the blood type distribution ratio of Chinese.

When he was having dinner with Thorpe and Bai Xiao in Beijing, he heard Bai Xiao say during the banquet, as if according to the survey in "Human Blood Group Genetics", the proportion of ABO blood type among Chinese is type A accounting for 27. 9% and type B accounted for 29. 2%, O-type accounted for 34. 4% and type AB accounted for 8. 5%。

Now although type O accounts for more than half, but fortunately, the child's blood type is not type AB, otherwise there are two people for blood drawing, even if you add your own 200 ml is not enough, now there are six people, each person only needs to contribute 200 ml is enough, there is 1200 ml, which is enough to change half of the blood on the child's body.

Because according to scientific measurements, the total blood volume of a normal person is equivalent to about 8% of body weight, and if a person's weight is 50 kg, the blood volume is about 4000 ml. A child of Ah Wei's age generally does not weigh more than 25 kilograms, so when converted, it is less than 2,000 milliliters.

"Hong'er, you ask Ah Jing to read your name to you, you go to the front and call them over, and let me talk to them about blood donation." Huang Shi originally wanted to do this by himself, but he felt that his legs were weak, so he had to let Hong'er speak for him.

……

"Ding Er."

"Zhou Damu."

Hearing Miss Hong'er call her name in front, Zhou Damu stood up suddenly, but saw that Ding Er, who was sitting next to him, did not move, so he pulled him, "Brother Ding, call you from above." ”

"Knowing the way, knowing the way." Ding Er reluctantly stood up, he was really afraid of something, but it was a blessing or a curse, and he couldn't avoid it, so he could only follow Zhou Damu to the front.

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

"You just have this heart, but you yourself just saw that you are type B, and your brother is type A, I said earlier that there are different blood types, and they can't be transported to each other."

Ah Jing asked with some frustration, "Why do you have different blood types between me and my brother?" ”

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

It's just that he didn't remember what Bai Xiao said at that time, so he comforted Ah Jing and said, "I'll tell you the truth in the future." ”

"Good, chief." Ah Jing nodded.

Hong'er saw that Huangshi was a little weak, so she persuaded him, "Chief, then don't offer it!" ”

"I'm fine." Huang Shi's head now also feels very dizzy, and he doesn't want to don't want to don't want to donate, for fear that after he draws 200 ml of blood, he will faint immediately, but after he said it just now, now look at the six people present, except for Zhou Damu, everyone else is afraid to look at themselves, and their questions about themselves are also flickering.

Huang Shi thought in his heart that he was not a skilled practitioner, if he was a lawyer who practiced his lips, or if he was a fortune teller, which of these people was not a lotus flower, who could speak well, and who could say that the dead were alive and the living were dead.