Chapter 519: We are not the race that understands blood best. Woohoo
Does oxygenated arterial blood taste good?
That's good.
Amid Viscount Sebesh's gushing surprise, Gretel packed up the test tubes and smiled slightly:
"So, is this little trick enough to convince your Lord Marquis to participate in research and development?"
"It's definitely not enough!" Viscount Sebesh raised half a beaker of blood to the tip of his nose, sniffed it carefully, and then rubbed it carefully with the tip of his tongue:
"The processed blood does taste better, but it still can't be compared with fresh arterial blood! It's sour and has a bad smell~"
Oh, that is definitely different. What venous blood carries are waste products from human body metabolism, carbon dioxide, excess electrolytes, and various other things. Arterial blood carries oxygen and nutrients.
Therefore, the extracorporeal circulation device needs to use a semipermeable membrane or something to allow oxygen to enter, carbon dioxide to come out, and to filter out uric acid and other things. If you ask me to do it now, I can’t do it~
Gretel is calm and composed. Uric acid, carbon dioxide, electrolytes, and various ions are all dissolved in the plasma. We can't make a semipermeable membrane, so we just separate it and it's over!
"If you think it tastes bad, I have another way. Do you want to try it?"
"want!"
"Okay, go to the hospital!"
There is a centrifuge in the hospital. The centrifuge spins the blood that has been added with anticoagulation. It buzzes, and the blood cells and plasma are perfectly separated.
Grete did not separate stem cells, lymphocytes, white blood cells, platelets, etc. He released all the blood cells and added potassium chloride and calcium chloride according to the specific volume. Ringer's solution is normal saline.
It fell inside.
Stir evenly and centrifuge once to wash away the remaining plasma. Then, add Ringer's solution according to the standard hematocrit.
Anyway, during clinical blood transfusion, Ringer's solution is used to mix the blood cells, huh. Then, oxygen is pumped into it to turn the color into bright red.
"Come and have a taste"
Viscount Sebesh took it dubiously. He held it in his hand, shook it gently, and observed the color depth and clarity of the blood cup, whether there was any hanging cup, whether there were bubbles...
"It always feels weird to drink blood from a beaker. Could you give me a goblet next time?"
No. Grete gave him a look. I saw you tasting wine like you were doing, and I thought it was weird too!
Viscount Sebesh shook enough blood, put it in front of him, and took a deep sniff. His nose was dilated, and he tried his best to introduce the gas molecules above the beaker:
"Tasteless?"
He frowned, sniffed again in disbelief, and then sniffed again. He was heartbroken and simply took a big sip. Then, he turned to Gretel and expressed his heartache:
"Mage Nordmark, you are so wasteful! Why is there no flavor at all? It's just bland, just like"
"Alcohol?"
Grete helped him make up a word. Viscount Sebesh looked at him blankly. Grete turned around and poured a few milliliters of alcohol and handed it to him to taste. Mr. Viscount drank it all in one gulp and nodded vigorously:
"That's right! That's it! It's still the same thing, but it has no taste! How did you do it! You ruined all the good taste!"
That's for sure. Grete spread his hands.
Just like extracting alcohol from wine. Those complex aromatic substances that make up the flavor components, such as esters and fusel oils, are all left in place. Taking a sip is like drinking a sip of burning water.
Taste? What is that?
As for the ingredients that vampires consider to be flavor, Grete estimated that most of them are thyroxine, adrenaline, androgens, estrogen, etc., which are also dissolved in the plasma.
The blood cells are separated and washed once, and all the plasma is removed. Then, they are mixed with Ringer's solution in proportion...
Sorry, it must be bland, with no flavor at all. It's not as good as high-purity vodka, at least it's still strong.
But you can still drink it. Viscount Sebesh took a small sip, finishing the glass of blood with great care, and frowned:
"It's still drinkable. Well, it can't be compared to fresh human blood, but it's still pretty good. You don't know, sometimes when you go out without a blood slave, and you can't find a good hunting target, the blood you suck will
That stinks..."
Gretel: ...Thank you, I don’t want to hear it, I don’t want to know at all. Can you not tell me your one hundred and eighty thoughts about hunting and sucking blood?
Obviously not possible. Viscount Sebesh muttered and babbled, took a sip of blood, and said a few words. After finally finishing the drink, he suddenly let out a long sigh and squatted on the ground like a potato.
Gretel: "...What's going on?"
"I have never thought about these practices... I don't understand why they are done like this..." Viscount Sebesh held his head and whined:
"We are not the race that understands blood best..."
...What is there to be proud of in this false name?
Grete doesn't understand it at all. However, this does not prevent him from taking advantage of the situation:
"So do you want to participate in my research? If you participate, the research is done, and you are still the race that knows the best about blood! I will add you as the first author!"
"good!"
The potatoes sprouted, sprouted, and grew taller. Viscount Sebesh jumped up again, gearing up:
"Where do we start?"
Start by verifying the blood type. In other words, start by verifying that the vampires also have blood types. Gretel is still a little sure about this: Although the vampires are undead, they were once humans. Since they are humans, then, probably, maybe, maybe, they will also have blood types.
?
What's more, they still have rejection reactions. This is also a kind of verification, isn't it?
Viscount Sebesh frowned, stretched out his right hand, and muttered:
"It's a shame, it's a shame, why do I have to let you draw my blood... If I had known I was going to do this today, I would have brought a descendant here and let you draw his blood... Hiss! Be gentle!"
"I'm already light enough..." Grete had an expressionless face, pressing left and right, right and left on the inside of his right elbow. It's not like I want to use force. Why is your brachial vein deflated? It's not easy to press.
!
Fortunately, he never lost sight of his skills. Emergency first aid, opening intravenous channels, etc., you always have to start when you are in a hurry. You can't always wait for the nurses to do it. After pressing for a while, he finally felt the right position and inserted a needle into the vein.
Then.
Then.
Grete looked at the syringe, at the liquid gurgling out of the syringe, and then at Viscount Sebesh. Your blood is wrong!
Why is the color of the liquid extracted from the blood vessels so pale?
I have treated patients whose hemoglobin has dropped to 30g/l, but they are not that low! Are you sending me away by mixing a drop of blood with 5 ml of normal saline?
Under his doubtful and accusatory gaze, Viscount Sebesh turned his head with a pale face:
"What are you looking at me doing? True blood from the Vampire Clan is not so easy to obtain! Give me some time!"
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