Hearing Zhang Zian's words, Megan and the elfins were all stunned.
"Blood transfusion? You're saying to give this cat a blood transfusion? "Megan subconsciously confirmed.
Zhang Zian nodded. "That's right."
Fina's eyes lit up. It never liked to owe favors, but this time, because of its own carelessness, it owed a huge favor. Although a blood transfusion couldn't completely repay the favor, it could at least make it feel better.
Thus, it was the first to jump out and say, "Blood transfusion? Use this consort's blood! "
"Huh? Blood … blood transfusion? " Snowy Lionet was so scared that it curled up, as if it was afraid of being caught and drawn blood. "Blood transfusion? Does it hurt a lot?"
Megan asked further, "You mean … we have to use the blood of the other three cats to transfuse to this injured blue cat?"
The other three cats, of course, referred to Fina, Snowy Lionet, and Xinghai.
Zhang Zian shook his head, denying both Fina's request and Megan's question. "No, not their blood."
Snowy Lionet let out a sigh of relief. "You scared me to death …"
Megan and the other elfins were stunned. There were only four cats here. If they didn't use the blood of the other three cats, where would they find blood for the blue cat?
Zhang Zian's gaze fell on Famous, who was at the door. He walked over, squatted down, and patted its body. "Famous, can you lend some of your blood to Vladimir?"
"Ah?"
"Quack?"
"Eek?"
"Meow meow meow?"
Hearing this, Megan's eyes almost popped out. The elfins' jaws almost dropped to the ground. They couldn't believe their ears.
"Quack! You idiot, I can understand your feelings, but have you lost your mind? "Richard poked his head out of the hood and shouted.
Snowy Lionet said, "It's over, it's over. This stinky man's brain is filled with water!"
Famous was also confused. It had always thought that it couldn't help. "Uh … I don't really care, but can my blood be transfused to Vladimir?"
Megan rushed over and grabbed Zhang Zian's arm. "Hey! Are you out of your mind? Although I don't know much about pets, a dog's blood can't lose to a cat's, right? There will definitely be a severe rejection reaction. Not only will it not be able to save its life, it will even … "
This was an interspecies blood transfusion. In her mind, even if humans and monkeys could transfuse blood with each other, it was impossible for cats and dogs to do the same. After all, they were not even distant relatives.
"Yes!"
Zhang Zian solemnly gave an affirmative answer.
"Cats also have blood types. Most of them are type A, a few are type B, and very few are type AB. Just like humans, different blood types cannot be mixed." He looked at Vladimir, then glanced at the other cats. "But I don't know what its blood type is, and I don't know what their blood types are. No matter how much blood I draw from any of them and transfuse it to Vladimir, it's a gamble."
In addition to this worry, he was also not sure if the blood types of ancient cats like Fina and Snowy Lionet were different from those of modern cats.
"But, even if it's a gamble, there's at least a 50% chance of winning. Didn't you say that most of them are type A?" Megan still did not understand, and neither did the elfins. "But if we use dog blood, doesn't that mean that there's not even a 1% chance of winning?"
Zhang Zian took out a syringe from the first aid kit. He had found it in the bathroom cabinet of this house.
"You don't understand. Dog blood can be transfused to cats, and there's no need to worry about the blood type," he explained as he prepared for the blood transfusion. Otherwise, Megan might refuse to help.
"Since 1962, there have been more than 60 cats that have survived through dog blood transfusions, and four related papers have been published. The general principle is that the cat's immune system will not immediately reject the dog blood that was transfused into its body for the first time. It will take about a week for the rejection reaction to occur," he said.
"Ah?" Megan was dumbfounded.
"The point is that the half-life of dog blood cells in a cat's body is only four days! Do you understand? Before the cat has a rejection reaction, the dog blood cells will all die naturally, and four days is more than enough for the cat to survive the critical period of blood transfusion! "
As a good student who excelled in both academic and moral conduct, Megan finally understood that this was taking advantage of a time difference. A cat's immune system's reaction to the dog's blood cells was relatively slow, and by the time it reacted, the dog's blood cells would have already died naturally. Thus, there wouldn't be a strong rejection reaction. This was far better than randomly transfusing cat's blood with unknown blood types.
"That's amazing … Cats and dogs actually have such a relationship …" she murmured. "There must be a reason why God arranged cats and dogs to be the closest animal friends of humans …"
"What about the reverse? Transfusing cat blood to dogs … "she asked curiously.
"No," Zhang Zian said. Zhang Zian said, "The reverse won't work. After all, this is only an emergency plan, because a cat can only accept dog blood once in its lifetime. If it's a second time, even if the blood comes from the same dog and is transfused to the same cat, the cat will still have a serious rejection reaction."
The cat's immune system may have a slow reaction the first time, but it was not stupid. It would firmly remember the characteristics of the dog blood cells and mark it as an invading foreign body. If the dog blood entered the cat's body a second time, it would immediately and mercilessly launch an immune attack, treating the dog blood as a foreign body. Not only would it not save the cat's life, but it would also cause the cat's death.
He was not very clear about the situation in North America and Europe, but basically, all the pet hospitals in China did not have a regular cat blood bank. Not to mention China, even neighboring Japan, which was much richer than China and treated pets better, did not have a cat blood bank. When blood was needed, they could only temporarily draw blood from healthy cats in the hospital.
What if there were no healthy cats in the hospital at that time, or the cats were too old, small, or weak to be suitable for blood drawing? Then they could only advertise and invite enthusiastic people to voluntarily bring cats to donate blood for free.
If the hospital was located in a remote area, and no one nearby volunteered to bring cats to donate blood, or if the situation was very urgent and they could not wait for a willing cat to donate blood, what should they do?
If there were dogs nearby, as long as they were healthy adult dogs, they could temporarily become blood donors in an emergency. Dogs were usually bigger than cats, so the impact of donating blood was smaller.
However, very few people knew about this. Occasionally, some people might have heard about it, but they did not understand the principle behind it. Even most of the veterinarians in China did not know about it. Fortunately, he knew a knowledgeable professional veterinarian.
Zhang Zian handed a syringe to Megan. "Now that you understand, get ready to start. Listen to my instructions."
"Okay!"
Megan took the syringe excitedly, her heart filled with a sacred sense of mission.
Famous squatted next to the coffee table and put a front paw on the table. "Come on!"
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