Garrett’s hands were steady.


    His heart was also calm.


    A 20ml syringe, filled with saline solution, was inserted smoothly into the cut end of the brachial artery. His right hand’s index and middle fingers held the syringe while his thumb pressed on the plunger, slowly pushing it forward.


    In his past life, syringe needles used for flushing blood vessels were supposed to be blunt-ended to avoid damaging the inner lining of the vessels. Unfortunately, Garrett had not considered this when making the needles earlier.


    All the needles were beveled! It was too late to have new ones made and sterilized on the spot. Limb transplantation required racing against time to minimize damage...


    He had to rely on his steady technique to keep the needle parallel to the axis of the vessel, preventing the sharp tip from piercing the vessel wall. Then, he slowly and steadily pushed the liquid forward, allowing the saline to enter the artery and flow along the vessel pathway.


    It couldn’t be too fast or too slow. Too fast, and the jet of fluid would damage the delicate inner lining; too slow, and the saline wouldn’t reach the end of the limb before returning via the veins.


    The limb was severed, there was no heartbeat or arterial contraction, only the pressure from the syringe pushed the saline forward in the vessel. It had to reach the end to wash out accumulated metabolic waste and blood clots, expanding spasmed, closed-off capillaries and small blood vessels.


    In his previous life, Garrett hadn’t performed limb reattachment or organ transplants. He had to estimate the correct speed of injection, testing it bit by bit. "Firstly, there’s no resistance, which means there are no clots nearby, that’s good..."


    After one syringe of saline was injected, he drew another and continued. As Garrett flushed the area, he muttered:


    "Ah, if only I had a pump... Using a syringe always makes it hard to maintain even pressure... This should be heparinized saline..."


    "Heparin?" The silver dragon girl suddenly chimed in. She sat on a floating disc turned into a stool right next to him, watching intently. Hearing Garrett’s muttering, she immediately asked:


    "Is heparin something squeezed out of a liver?"


    "Did you hear that!" Elder Brock’s voice boomed from behind the operating table, his feathered crown rustling:


    "Lord Healer needs a liver! Who will fetch a fresh one!"


    Under his heavy gaze, someone immediately turned and dashed out. Garrett broke out in a sweat:


    "No!"


    Heparin, indeed, was discovered in the liver, but that doesn’t mean you can just take a piece of liver, squeeze it, and get heparin!


    Whether it’s regular heparin or low-molecular-weight heparin, the production process is quite complex and precise! Giving me a piece of liver wouldn’t be useful!


    Moreover, nowadays, heparin is mainly extracted from cow lungs or pig intestinal mucosa, nothing to do with actual livers...


    The elder who dashed out skidded to a halt. Serila, sitting at the far end of the operating table, asked softly through her arcane eye focused on the limb:


    "What do we do then?"


    "Nothing much, if we don’t have it, we don’t have it..."


    Garrett responded dully through his mask. Ultimately, saline flushing was a physical method to remove thrombi, while the use of heparin was to prevent blood from clotting again.


    As long as he reconnected the vessels quickly enough and threw enough healing spells, he wouldn’t have to worry about clots!


    "Garrett, what are these red, blue, and yellow things?"


    "Ah, those are the vessels and nerves I’ve marked... Red is the arteries, blue is the veins, yellow is the nerves..."


    "So later, it’s red to red, blue to blue, yellow to yellow, right?"


    "Exactly. That’s roughly it..."


    Garrett explained softly, staring at the limb. Mage tricks were so convenient—if this were in his past life, he’d have to tie threads to mark them during debridement. Not to mention the difficulty of the procedure, how fragile vessels and nerves are, any physical damage is certain with a tie!


    The delicate periosteum was best not damaged! With the periosteum in place, the bone ends would heal easily. Although the healing spell was powerful, it was best to save wherever possible...


    "Alright! Serila!"


    "Here it comes!"


    A clump of white light, as solid as reality, descended. Garrett stared intently at the humerus fracture, watching the periosteum tightly wrap around the bone ends, watching the bone gaps gradually close together.


    Lean down a bit more, using Serila’s headgear to light it up, looking at the distal end bitten by the black cloud leopard, following the healing spell, filling up, leaving no cracks...


    Awesome!


    Healing spell, Serila, awesome!


    This healing spell, strong enough to be considered for serious injuries, focused entirely on a single bone. No wonder the bone immediately sealed perfectly, just like it had never been injured!


    Garrett’s face lit up with joy, giving Serila a thumbs up, and continued working. Ah, the bone was secured, now onto the vessels. If the vessels successfully joined, this arm would live, then it was just a matter of how much function would recover.


    Garrett stowed away the silver skeleton, closed his eyes, and concentrated for a moment. Then


    , making a circle with his right thumb and index finger, he signaled to the silver dragon girl:


    "Spell magnifying glass, come~~~"


    "Too close! Move it further! Even further!"


    "Increase the magnification! No, I’m not asking you to make the magnifying glass bigger, make the magnification larger!"


    "It’s tilted! Lift the left side a bit!"


    "Raise it a bit, you’re about to touch it! You’ll contaminate the lens!"


    It turned out that Garrett and the silver dragon girl’s rapport still needed some work...


    Up and down, stumbling along. The magnifying glass finally adjusted to a comfortable position for Garrett, who then focused entirely on joining the vessels. Brachial artery, cephalic vein, basilic vein. One artery, two veins, all three vessels joined, ready to release the vascular clamps—


    "Serila, prepare the healing spell! If he feels dizzy, palpitations, or sees darkness, cast it immediately!"


    Blood volume hadn’t been replenished, blood pressure hadn’t risen back, and once the artery was opened after connecting the limb, the patient was very likely to have a sudden drop in blood pressure!


    At that moment, only the healing spell could save the day!


    "...But he’s bound there, how would I know if he feels dizzy or has palpitations?"


    "..."


    "..."


    That’s a good question... How would you know if someone under general anesthesia is fainting!


    We should have produced a sphygmomanometer sooner!


    ---------------


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