The fast horse went and returned, and in about the time it takes for an incense stick to burn, all the items mentioned had been gathered.
Qin Zhaoyue personally burned the dried kelp into ash, dissolved it in distilled water, let it stand, and then filtered the supernatant multiple times.
The brine is first dissolved in water, filtered multiple times, and then boiled again to crystallize.
Kelp needs potassium carbonate and potassium iodide, while brine is used for magnesium chloride. Under current conditions, this is the most that can be done.
The next challenge is the concentration ratio.
Brine is fine; try to prepare it according to the ratio of physiological saline, regardless of how much magnesium chloride it contains.
Adding the supernatant from the kelp ash solution was entirely based on guesswork; I added two drops to each tube.
Qin Zhaoyue was the only one busy throughout the entire process, her expression extremely focused.
It took her about two quarters of an hour to prepare the injection solution, and then she took out a syringe.
These are props made by magicians along the way. The embolism and syringe are easy to make, but the most difficult part is the needle.
Fortunately, Mo Twelve's flying needles are very special; they are as thin as cow hair and hollow, which saves a lot of trouble.
However, it was still a bit thicker than the needle in the original world, and Qin Zhaoyue had been secretly using her internal energy to refine it over the past two days.
After wasting more than a dozen flying needles, they finally managed to grind out a usable one and assembled it into a syringe.
The injection fluid was successfully drawn, and all air was expelled. All preparations were completed.
Just then, Physician Fang, who was in charge of the mild cases area, was invited over.
He had already given up on these critically ill patients, but upon hearing about the Sixth Princess's treatment method, he immediately frowned. "Your Highness, I have never heard of such a treatment method before."
Qin Zhaoqiong nodded. She was the one who had called the person. "If any accidents happen, you will be in charge of the first aid."
Physician Fang frowned, but still readily agreed.
Huff... Qin Zhaoyue let out a long breath.
We've done everything we could; we even sterilized the needles with flame and strong liquor.
"I'm ready."
The dying old man had been moved to a bed and laid flat, with a clean straw mat placed on him.
At this point, his breathing had become barely perceptible, and according to Doctor Jiang, he could die at any moment.
Everyone can see that the old man's life is like a candle flickering in the wind, as if it will be extinguished at any moment.
"Make the firelight as bright as possible."
The guards immediately stepped forward and lit the way with torches from all sides.
"Grab his wrist and slap the back of his hand."
Jiang Qingpu was stunned for a moment, but immediately squatted down and did as instructed.
A few suppressed coughs occasionally came from inside the room, and the slapping sounds seemed extremely jarring at this moment.
Even those present who weren't doctors had all been sick and seen doctors before, and they had never seen anything like this before. For a moment, they all held their breath and were completely stunned.
"Alright!" Qin Zhaoyue squatted down. "When I say 'let go,' you untie the rope around his wrists. Be as gentle as possible and don't move his hands."
"Okay, I've got it."
Qin Zhaoyue took a few final breaths, picked up the needle, and focused intently on the back of the old man's hand.
Don't be nervous, don't be nervous... I kept mentally preparing myself.
She had received IV drips many times, especially once when she met an intern nurse and asked if she could help.
Back then, I was young and embarrassed, and seeing how sincere the question was, I reluctantly agreed.
Qin Zhaoyue clearly remembers that time, the needle went in, was pulled out, and went in again, twisting and turning in her skin several times.
The blood vessels were more resilient than she had imagined. The impression she had at the time was so profound that she even remembered the needle "teasing" the blood vessels, swaying back and forth, but just not being able to pierce them.
It's okay, you can start over if you make a mistake. Take your time, take your time...
Just as the needle was about to pierce the patient's skin, a shout suddenly came from behind, "Wait!"
Qin Zhaoyue's breath hitched, and she almost jerked herself into inserting the needle.
The one who spoke was the imperial physician. He had always thought that the injection method was unreliable, and he had only heard the princess mention it briefly.
However, after actually seeing what the Sixth Princess did, he exclaimed that it was absurd and called for a halt at the last minute.
"Sixth Prince, what kind of method is this? I have never heard of it in my forty years of medical practice. It concerns human life and cannot be taken lightly."
"Shatter Ink!" Qin Zhaoyue gritted her teeth and shouted without turning her head.
"Your subordinate is here."
"Don't let anyone bother me."
"yes!"
With a clang, the sword was drawn. Without the slightest hesitation, before anyone else could react, the blade was already pressed against Physician Fang's throat.
His face was cold and stern, and his whole body exuded an icy chill, as if he would immediately attack if the other party dared to utter another sound.
Under the firelight, the scars on the back of the Sixth Princess's hand were clearly visible in the ink.
Having mastered various weapons of combat, she knew that it was caused by a fine needle-like concealed weapon piercing her skin.
Seeing the strangely shaped instrument and the needle tip modified from the flying needle of Ink Twelve, how could Broken Ink not guess?
The Sixth Princess was not playing around, because she had been conducting experiments with her own hands for the past two days!
Despite being a member of the royal family, her hands were covered with countless needle marks, yet she didn't utter a single complaint on her way here.
Therefore, at this moment, Sui Mo stood firmly in front of the Sixth Princess.
The accompanying Azure Phoenix Guards followed, forming a defensive line between the Sixth Princess and the others.
With their hands on the hilts of their swords, they would draw their swords at the slightest command to stop anyone from interfering.
Physician Fang panicked. A chill ran down his neck, and he dared not move. His gaze, however, was fixed on the princess beside him.
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