Of course, there are more than just Sun Lien and Cao Yanhua in the entire rescue room. However, Cao Yanhua is the only chief resident physician on duty, and although the level of other resident doctors is not weaker than Sun Lien in terms of rescue alone, Sun Lien's diagnostic expertise can be more fully exerted when encountering serious trauma such as limb dismemberment.

Limb dismemberment is an injury that requires a high level of seriousness. However, unlike other detachment injuries, avulsion injuries, and dismemberment injuries, the purpose of a highly serious limb detachment injury is to save the limb.

Sun Lien actually muttered a little in his heart, tonight is really a bit evil - an upper limb injury followed by a leg break, tonight's orthopedics can be busy.

Being able to be diagnosed pre-hospital as a dissecting injury rather than a dismemberment means that the patient who has not yet arrived at the hospital has a high probability of undergoing a limb replantation. Unlike blunt avulsions, which can cause severe nerve and muscle damage, and unlike dismemberment injuries, which are irremediable injuries, disconnected injuries generally mean that although the limb is completely separated, the cross-section of the broken wound is generally smooth because it is the injury caused by a sharp cut. This also often means that there is not much damage to the nerves and blood vessels, as well as the muscles. Doctors are able to try to partially restore the function of the limb by surgically reconnecting the severed nerves and blood vessels and suturing the muscles.

Because it is more promising than other injuries, hospitals tend to take the highest level of importance to patients who are determined to be distorted injuries. And the more important reason is that there is a window of time for the repair of this kind of stalwart injury.

As soon as the severed limb was separated from the body, it fell into a state of bloodlessness. The muscle cells, nerve cells, and so on that make up the limbs all need oxygen to survive. Without blood flow, there is no oxygen. Without oxygen, they can't survive – it's as simple as that. If the anaerobic state lasts too long, and the number of dead cells is too high, the limb must never be reconnected – the dead cells release large amounts of potassium and other cellular contents that are toxic to the body. If such a residual limb is removed from the body, the potassium and toxic cellular contents will return to the patient's body along with the veins, and not to mention how much function such a residual limb can retain, and this potassium alone can directly cause cardiac arrest and kill a person.

So, this time window is generally six hours. But at the end of June, the average temperature in Ningyuan has risen to nearly 29 degrees, and if the severed limb is not properly preserved under these conditions, the window period will be shortened to about four hours.

Sun Lien and three nurses stood at the door of the rescue hall, praying with all their strength in his heart, hoping that the pre-hospital first aid had done enough to deal with and protect the residual limb. I hope it doesn't last more than four hours. Let's hope the residual limb contamination is not serious.

Today there is already a patient who definitely needs amputation, and he doesn't want to see a poor person who needs to be amputated again.

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The ambulance appeared in the rescue passage of the fourth courtyard with its throat pulled, and then stopped at the door of the rescue hall with the sound of sharp tires rubbing the ground. Sun Lien quickly greeted him with three nurses, and then began to quickly prepare for the transfer of patients.

"The severed limb is here. A middle-aged man jumped out of the car with a large white plastic foam box, and stuffed the box into Sun Lien's hand without saying anything, "Doctor, take a look, can this still be connected?"

"How long has it been injured?" Of course, Sun Lien, who was holding a large plastic foam box in his hand, couldn't help push the cart, but he quickly calmed down, began to inquire about the situation, and also opened the foam box and looked inside, "Is there ice cubes in here?"

"Let it go, let it go, hurt ...... The injury lasted about half an hour. The middle-aged man wiped the sweat on his head and nodded, "I put ice cubes under the box, and then wrapped my legs in a few layers of clean cotton cloth, and put them in a thick plastic bag, and then put them in." He asked anxiously, "Doctor, can this leg be attached?"

Sun Lien took a general look, and the severed limbs were indeed separated by plastic bags and ice cubes at the bottom of the foam box. The plastic bag was deliberately pricked, judging from the feel of the plastic bag, it was indeed wrapped in cotton cloth. He nodded, and while running to the hospital with the emergency bed, he replied, "Your method of saving is fine, and there is hope for taking it back." What is the specific situation, you have to ask the orthopedic doctor to take a look. ”

In the rescue room, Zheng Guoyou, director of the Department of Orthopedics, had long been in front of the duty desk. After seeing the rescue bed and Sun Lien running in with the foam box, Lao Zheng first unceremoniously stopped the bed, lifted the thin blanket to look at the wound, and then nodded, "The wound is in good condition, it's clean." He looked at Sun Lien and asked, "It's a severed limb inside?"

Sun Lien nodded and put the foam box on the table next to him, "Director Zheng, take a look now?"

"That must be seen now. Zheng Guo nodded a little, took off the latex gloves on his hands, and took out a new pair of gloves from the duty desk next to him and put them on, "Open it and let me see." ”

Sun Lien carefully opened the thick black plastic bag, Zheng Guoyou unceremoniously started directly, and took out a leg wrapped in cotton cloth from it, "The bag is okay, about three centimeters above the knee joint, yes, the joint is not injured much." He ripped off a bit of cotton, then touched the leg with the back of his hand and asked, "About an hour injured?"

"Almost. The middle-aged man nodded, "Doctor, can this leg be connected?"

"Absolutely. Zheng Guoyou gave a more direct and affirmative answer, "The question now is just how much function he can recover after this leg is taken back." He lowered his head and looked over the lens at the middle-aged man, "It's impossible to fully regain function, but it should be fine to walk on crutches." Whether he can recover a little better depends on his perseverance and luck. Speaking of which, Zheng Guoyou handed over the thigh in his hand to the orthopedic surgeon on the side, and instructed the other party to perform a preliminary debridement of the wound part of the amputated limb, and then took the patient to take an X-ray to see the bone damage, and then he said to the middle-aged man, "Tell me, how did this hurt?"

The middle-aged man sighed, pointed to the young man who was lying on the hospital bed and kept moaning, "This is my nephew's ......"

Wu Lian just graduated from college this year, but because the school is not very good, and it has been very difficult to find employment in the direction of finance in recent years, he thought about it and decided to come to Ningyuan to join his uncle Wu Zhong. Uncle opened a glass factory in Ningyuan, although even if he came to the factory, he couldn't engage in work related to his major, but after all, he was working for his relatives, and his family was at ease.

Wu Lian is quite serious and diligent, in addition to accounting work in the factory, as long as he can do other work, he will do it. From glass cutting to loading, and sometimes even acting as a truck driver – Wu Lian has a B1 license.

Today, however, the factory received an urgent order. A construction site in Changning is a major customer of the factory, but in the early hours of this morning, Wu Zhong received a call from a major customer - among the glass curtain wall components they had provided to the construction site, a large piece of tempered glass of eight meters by six meters was smashed by construction machinery. According to the construction plan, the glass must be installed in place this afternoon.

Generally speaking, as long as the requirements of large customers can be realized, Wu Zhong will do everything he can to do it. What's more, this order is an urgent order, and the price is 70% higher than the usual quote. After receiving the call, Wu Zhong immediately rushed back to the factory and called the truck to prepare for the crane.

However, the problem lies in the installation and hoisting. Because only the last piece of tempered glass of this size remains, it must be foolproof during the lifting process. Wu Lian, who lives in the factory, volunteered to be responsible for the pulling work below the hoisting.

Unfortunately, however, the hoisting ended up having some problems. The composite traction strap that had been checked for no problems suddenly broke before the loading was completed. The one-and-a-half-ton tempered glass smashed against the steel carrier, knocking off a six-millimeter-thick piece of tempered glass on the other side that had not yet had time to be fixed. Then this piece of tempered glass, which weighed about half a ton, smashed directly into Wu Lian's leg, and perfectly cut his right leg into two pieces. Thanks to a gap in the ground, it happened to be stuck with the body of the truck that the tempered glass, otherwise the glass continued to fall down, and it would not be as simple as the replanting of severed limbs - maybe Wu Lian would be directly stoned to death.