The essence of snow blindness is the acute sterile inflammatory reaction caused by ultraviolet ray burning the cornea.

Not to mention a place like Ningyuan, where it doesn’t snow much in winter, even in the northern region, many people do not have the habit of "must bring sunglasses when going out after heavy snow."

Generally speaking, snow blindness is often found in plateau areas - the snow here does not melt all year round, and the ultraviolet rays in the air are much stronger than those in plain areas. Walking on snow for a little longer, there is a risk that ultraviolet rays reflected by snow burn the cornea.

Although it was just snowing in Ningyuan now and the sky was covered with lead clouds, Dr. Cao Yanhua has been feeling a little uneasy since he sneezed two times - he decided to prepare before talking.

It seemed to prove that Dr. Cao Yanhua's concerns were not wrong, and suddenly there was a noise in the distance. When Dr. Cao's eyes passed through the gap in the crowd, he saw the person lying on the ground, and his pupils immediately contracted.

Something happened.

Taking off his pink down jacket, Cao Yanhua rushed out with the medical box in his arms. The crowd gathered about seventy or eighty meters away from him, and he fell three times on the way to rush over. The nurse sister closest to him couldn't even reach the place where he fell, and helped Dr. Cao up from the ground. He struggled to stand up by himself and then continued to run forward.

Dr. Cao Yanhua, who was running and panting, squeezed out the crowd with all his strength, and then rushed to the person who was lying on the ground.

This is a worker master who is responsible for installing the board room. He also has a somewhat worn bright yellow hard hat on his head. The hard hat is firmly buckled on his head. According to Dr. Cao Yanhua's first judgment, the worker master in front of him seemed to have no other obvious injuries.

"Give it aside!" Cao Yanhua squatted beside the worker and began to conduct a quick examination. The nurses finally arrived at the scene, and they automatically took on the job of asking about their medical history in advance. "What's going on with this person?"

"Before Lao Feng started working this morning, he said that his legs hurt." The staff closest to the worker master quickly explained the situation. "When Lao Feng was cutting the board, he suddenly sat on the ground. His face turned pale and he couldn't speak. I saw that his situation was wrong and thought the air in the room was not good, so he quickly dragged him out."

"Then he..." The nurse wanted to ask a few more questions, but Cao Yanhua suddenly began to peel off the worker's coat and then started to press the chest. While pressing, he shouted: "Cardous arrest, go get AED! Call 120!"

There is no fixed location for AEDs to be placed in the railway station square. The nearest AED here is located at the security entrance at the entrance of the ticket hall.

Without saying a word, the nurse turned around and ran towards the ticket hall three hundred meters away. However, Cao Yanhua had no time to pay attention to these things - the patient under his palm was in a bad condition.

None of the patients with cardiac arrest can get better, but his condition seems to be particularly bad. His lips are covered with an unknown purple-black color, and his pupils seem to have spread a little.

Performing chest compressions with all your strength is a very physically consuming task. Although my feet were still numb just now, after the two sets of pressing, Dr. Cao Yanhua's head began to fall down.

Thirty presses, two artificial respirations, and another thirty presses... Exercise chest compression outside the hospital is like a hell marathon where you can't see the end. Not only does it have no end, but you can't slack off at all - as long as you slow down, your life will definitely be gone.

As the supervisor of the Chest Pain Center, Cao Yanhua has seen countless patients with ventricular fibrillation and arrest. But in the fourth hospital, he at least had a clear idea of ​​what measures should be used to treat and stabilize the patients. But now in the square in front of Ningyuan Railway Station, the drugs stored in the medical site have not been counted yet - he is not even sure if there is dopamine in it.

Fortunately, when the pressing reached the sixth group, a doctor and a nurse came from the station. They took over the chest compressions and replaced Cao Yanhua, who had been pressed to an almost hypoxia.

The ninth group of chest compressions were halfway through. Dr. Cao Yanhua, who had recovered a little bit, completed the intubation of the patient during the compression process, and installed a balloon to start pressing.

While completing the intubation, the nurse who rushed to the ticket gate to get the AED also rushed back. Everyone worked together to completely peel off the clothes of the worker named Feng, and then put on the electrode piece.

"The electric shock begins, please do not touch the patient." After Dr. Cao Yanhua covered his thick clothes on the patient, AED completed the electrocardiogram analysis and then began to perform the electric shock resection. After seeing the patient's body shake slightly, Cao Yanhua was the first to kneel down again and began to continue chest compressions.

The four medical staff underwent and back chest compressions for almost 20 minutes. It was not until AED shouted that "heart rate returned to normal", that the four people sat on the ground.

Everyone was sweating profusely.

Dr. Cao Yanhua sat on the ground, took off the balloon and observed it for a while. After confirming that the patient had breathed independently, he breathed a little relieved.

The medical team stationed in the hotel had already rushed over with rescue vehicles. They arrived at the scene faster than the 120 - the 120 ambulance assigned to the task is now struggling.

"Now there is a sinus rhythm, and there is also self-breathing." Dr. Cao Yanhua seized the time and explained the situation to the doctors who came to pick up the person. Then he lowered his voice, "But the consciousness has not recovered yet. I just looked at it and my pupils were not right."

While pressing the balloon, Dr. Cao Yanhua saw that the patient's pupils were incorrect in both eyes - the pupils on both sides were not as large as the right pupils were narrowed.

In other words, it is very likely that this is not a cardiovascular accident, but a cardiac arrest caused by a cerebrovascular accident. Cerebral bleeding presses the pons or brain stem, which leads to cardiac arrest.

"I understand. I'll send it to the hospital right away." The doctor who came to take over was also an old colleague who had been working in the emergency room for many years. He immediately understood what Dr. Cao Yanhua meant. Looking at Cao Yanhua's thin clothes and sweating, he reminded, "Be careful to keep warm and be careful not to catch a cold." Then he pushed the cart and left the square in front of the station.

"Doctor, thank you." The worker who had just dragged Lao Feng out of the construction site bowed to Cao Yanhua with gratitude, then wiped the tears from the corners of his eyes with his hands, "The old Feng family has an old mother in her 80s, and there are two children who are in school below... If something happened to him, I don't know how to tell them about this..."

Cao Yanhua tried hard to squeeze out a smile, "Now that we have sent the person to the hospital, we will definitely do our best..." But he knew very well that such a patient... was likely not to survive at all.

Cerebral hemorrhage causes compression of the pons or brain stem, and such patients have almost no hope of survival.
Chapter completed!