When Meghan and the elves heard Zhang Zi'an's words, they were all stunned.

"Blood transfusion? Are you talking about giving this cat a blood transfusion?" Megan confirmed subconsciously.

Zhang Zi'an nodded, "That's right."

Fina's eyes lit up. It never wanted to owe anyone, but this time it owed a huge favor because of its carelessness. Although the blood transfusion cannot be completely repaid, it can at least make it feel better.

So, it jumped out first and said, "Is it blood transfusion? Use my blood!"

"Scared?... blood transfusion?" The snow lion shrank in fear, as if she was afraid of grabbing it and drawing blood. "Does the blood transfusion hurt?"

Megan asked further: "Is it... to use the blood of the other three cats to the injured blue cat?"

The other three cats, of course, refer to Fina, Snow Lion and Star Sea.

Zhang Zian shook his head, denying Fina's request and Meghan's inquiry, "No, it's not their blood."

The Snow Lion breathed a sigh of relief, "I'm scared to death..."

Megan and the other elves were stunned because there were only four cats here, and there were no other three cats to use blood. Where can I find blood to be sent to the blue cat?

Zhang Zi'an's eyes fell on Feimas at the door, walked over and squatted down, patted his body, "Femas, lend some of your blood to Vladimir?"

"ah?"

"Ga?"

"Squeak?"

"Meow Meow?"

As soon as these words came out, Meghan's eyes were almost glaring out, and the elves' chins were almost falling to the ground, and they couldn't believe their ears.

"Gaga! You idiot, I understand your mood, but are you confused?" Richard poked his head out of his hood and shouted.

Snow Lion: "It's over, the stinky man's head is flooded!"

Feimas himself was also confused. He always thought he could not help, "Uh... I don't care, but can my blood lose to Vladimir?"

Megan rushed over and grabbed Zhang Zi'an's arm, "Hey! Are you crazy? Although I don't know much about pets, I can't lose to cats no matter how you think about the blood of a dog, right? It will definitely have a serious repulsive reaction. Not only will it not save its life, it will even..."

This is a blood transfusion across species. In her concept, even if humans and monkeys can transfusion each other, it is impossible between cats and dogs. After all, even distant relatives are not considered to be considered.

"able!"

However, Zhang Zian solemnly gave an affirmative answer.

"Cats also have blood types, most of them are type A, and a few are type B, and ab type are very rare. Like humans, different blood types cannot be mixed." He looked at Vladimir and glanced at other cats, "But I don't know what blood type it is, nor do I know what blood type they are. No matter whether they draw blood from any of their bodies and then inject it into Vladimir, they are gambling."

In addition to this concern, he was also unable to see whether the blood types of ancient cats like Fina and Snow Lion were different from modern cats.

"But even if it's gambling, it's at least more than half of the winning rate. Didn't you say that most of them are Type A?" Megan still didn't understand, and the elves didn't understand either, "But if you use dog blood, wouldn't you even have a 1% winning rate?"

Zhang Zi'an took out the syringe from the first aid kit, which was found from the bathroom cabinet of this house.

"You don't understand that dog blood can be given to cats, and there is no need to worry about blood type." He explained while preparing for blood transfusion, otherwise Meghan might refuse to help.

"Since 1962, more than 60 cats have survived by injecting dog blood, and 4 related papers have been published. The general principle is that the cat's immune system will not immediately react to the dog blood cells that are first imported into the body, and it will take about a week to react to the rejection." He said.

"Ah?" Megan was stunned when he heard this.

"The key point is that the half-life of dog blood cells in cats is only 4 days! Do you understand? Before the cat has a rejection reaction, all dog blood cells have died naturally, and 4 days is enough to survive the dangerous period of urgently requiring blood transfusion!"

As a good student with excellent character and academic performance, Megan finally understood that this is a time difference. The cat's immune system responds to dog blood cells relatively slowly. When it comes to react, the dog blood cells input into the body have naturally disappeared, so there will be no severe rejection reaction. It is much better than randomly sending cat blood to try luck when it is unknown.

"It's amazing... Cats and dogs actually have such a relationship..." She murmured: "There must be a reason why God has arranged cats and dogs to be the closest animal friends of humans..."

"Is that okay? Transfer cat blood to dogs..." she asked curiously.

"No." Zhang Zi'an said: "Then it is not possible, and this is only an emergency plan after all, because a cat can only accept dog blood this time. If it is the second time, even if the blood still comes from the same dog, if it is lost to the same cat, the cat who is transfusion will have a serious rejection reaction."

The cat's immune system may react slowly for the first time, but it is not stupid. It will remember the characteristics of dog blood cells and mark it as an invading foreign body. The second time if dog blood enters the body, it will immediately launch an immune offensive without mercy and use dog blood as a foreign body to drive it away. It will not only fail to save lives, but will also cause the cat to die.

He is not very clear about the situation in North America and Europe, but basically all pet hospitals in China do not have regular cat blood banks. Let alone China, even if the neighboring country Fusang, which is much richer than China and treats pets better, does not have cat blood banks. When blood is needed, you can only temporarily draw blood from healthy cats in the hospital.

What if there were no healthy cats in the hospital at that time, or if the cat was too old and too weak to draw blood? Then I can only publicize it and ask enthusiastic people to voluntarily bring the cat to donate blood free.

What if the cat that is remote and no one nearby voluntarily brings cats to donate blood, or if the situation is in a hurry and cannot wait for the cat that does not voluntarily donate blood, what should I do?

If there are dogs nearby, as long as they are healthy adults, they can be temporarily treated as blood donors. Moreover, the dog's body size is usually larger than that of cats, and the impact of donating blood is also smaller.

However, few people know this, very few. Perhaps occasionally, some people have heard of it as anecdotes, but they don’t understand the principle. Even most veterinarians in China don’t know it. Fortunately, he knows a professional veterinarian who is a top student.

Zhang Zi'an handed a syringe to Meghan, "If you understand, just prepare to start and follow my command."

"good!"

Megan took the syringe excitedly, and his heart was filled with a sense of divine mission.

Feimas squatted beside the coffee table and put one front paw on the table, "Come on!"
Chapter completed!