Zheng Ren held a 50ml syringe in his hand, and after simple disinfection, he stabbed it in 0.5cm above the pubic bone.

The bladder full of urine was pressed against the abdominal wall, and it was not difficult to get acupuncture. Then Zheng Ren began to draw out the urine accumulated in the bladder.

The 50ml syringe syringe tube is about 60ml, and 6 aspirations are performed. Zheng Ren turned his head to look at the electrocardiogram monitoring.

With Su Yun's heart compression and the decrease in the urine accumulated in the bladder, atrial fibrillation heart rate appeared on the electrocardiogram monitoring.

"Continue heart compression, Gu Xiaoran! Prepare for defibrillation!"

"Erepinephrine, lidocaine intravenously."

Gu Xiaoran took the defibrillation head from the traveling nurse and asked, "How much energy is given?"

“200j.”

"Teacher He, I'm defibrillating." Gu Xiaoran still greeted Lao He very carefully, but he was inexplicably panicked when he saw Lao He holding a syringe in his hand and was waiting for him to do defibrillation first.

It was like a machine that was originally running well, but it suddenly stumbled for its own reasons.

"Xiao Ran, give it to me, hurry up." Su Yun knelt on the operating table in a very awkward position and was doing heart compression. He said anxiously.

"Oh, oh." Gu Xiaoran immediately handed the defibrillator to Su Yun.

"Bang~"

With 200 joules of energy, the patient's ventricular fibrillation improved to a certain extent.

"Continue." Zheng Ren directed the rescue.

As the heart rate appeared, what he said was no longer as dense as it was at the beginning.

Zheng Ren took out 600ml of urine and took out the needle of the syringe.

"Mr. Yu, have a cystostomy." Zheng Ren looked at Mr. Yu and said.

"Oh, okay." Mr. Yu stood in the operation area, watching the heart rate displayed on the patient's ECG from normal to disappear, and from disappear to normal. The process had nothing to do with him, as if he was observing an extremely standard emergency rescue teaching.

But... I seem to be the craftsman, and I should be the one who stands in the middle to command the rescue. Seeing Boss Zheng in the middle command, Mr. Yu was a little envious.

Zheng Ren took a look at the patient's electrocardiogram and it had stabilized. Finally, he breathed a long sigh.

"It's okay. Mr. Yu has an stomatology first and then remove the nails." Zheng Ren said.

Although the electrocardiogram monitoring still emits two alarms occasionally, the effects of 3 defibrillation and adrenaline, lidocaine and atropine have gradually returned to normal.

The most important thing is that the urine in the bladder has been pulled out by Zheng Ren.

After observing for a few more minutes, Mr. Yu laid out the sterile form of his abdomen and started to have a cystostomy, the patient's vital signs had returned to normal.

"Boss, you are really like mice and ants." Su Yun had some sweat stains in front of his sterile cap. It was not because of his nervousness, but because he had just half kneeled on the operating table for emergency chest compressions, which was too awkward.

In fact, it is enough to stand under the operating table and add a footstool, but at that time the heart rate suddenly fell sharply, and the electrocardiogram was pulled into a straight line. Who has time to think about so many things?

It's definitely how to come quickly.

"Urgent retention in the bladder stimulates the vagus nerve." Zheng Ren did not want to go on stage to help Mr. Yu. He was just a cystostomy surgery. By the way, he checked whether the needle of the 50ml syringe damaged other organs. This kind of operation is almost not considered a surgery, but can only be said to be a disposal operation. Zheng Ren would not do it.

"Is it another rich clinical experience?" Su Yun blew a breath of energy subconsciously. A stream of hot air could not flow through the 3-layer mask and overflowed through the gap above the bridge of his nose.

"Well, sure?" Zheng Ren said frankly, took off his sterile gloves, turned around and sat on the original stool.

"Boss Zheng, Brother Yun, what's going on?" Mr. Yu asked with lingering fear.

When the patient's heart rate fell sharply and the electrocardiogram was directly pulled into a straight line, he was confused and didn't know how to be afraid. Now everything has passed, and when he thinks about it, Mr. Yu is afraid.

This is a hell! The good patient came in by himself. Why did he die suddenly after undergoing surgery for a few minutes?!

"I just said that the vagus nerve is stimulated." Zheng Ren said lightly, leaning his back against the wall, feeling the chill from the wall, and he was also a little lucky.

Fortunately, I couldn't find the answer in the end. When I came out of the system operating room, I heard Mr. Su Yun and Mr. Yu chatting. When I talked about the high bladder pressure, urine might spew out when I opened the last nail.

This idea made Zheng Ren turn back to the system operating room, have a cystostomy first and then have surgery, and the experiment did not have cardiac arrest.

The problem was found, but it was a little regretful that the patient's heartbeat had stopped before Zheng Ren said it.

But it would be good to be saved, Zheng Ren thought to himself.

Seeing that Boss Zheng was not willing to speak, President Yu had to look for the pubic bone and prepare to cut it in the stool and perform a cystostomy while looking at Brother Yun with inquiring eyes.

"The traverse nerves are widely distributed in various tissues and organs throughout the body, and they complete various physiological activities with the central nervous system through reflex arcs." Su Yun said and asked, "Have you ever had an ophthalmic surgery?"

Mr. Yu shook his head.

"Where did you graduate? You were intern during the break? Didn't you go to ophthalmology during the internship?"

"I've been there, but the professor will definitely not let me do it. It's good to be able to go to the operating room and stand aside and take a look. When I meet a fucked professor, I can't even go up to the operating room, so I just write my medical records below." Yu Zong said.

"Stop talking about fucking, I guess you will soon become the fucking professor you said." Su Yun smiled, "Did the boss say that, in the end, you became the kind of person you hated the most in the past."

"..." Mr. Yu was stunned for a moment, and smiled and said, "I borrow your good words, Brother Yun."

But at this time his smile was so stiff that he had not recovered from the sudden change.

An accident in the operating room will happen anytime and anywhere. God knows where there will be problems. It’s just that this problem occurs quickly and is solved faster. Mr. Yu has not reacted yet and has been rescued.

But...what does it have to do with ophthalmology?

"Brother Yun, what's wrong with the ophthalmology department? You continue to talk." Mr. Yu asked while cutting the skin and separating it layer by layer.

"There is a rare case in ophthalmic surgery called the center of the eye. When the eye muscles are pulled, they will produce a reaction of the vagus nerve, causing excessive excitement of the vagus nerve, leading to arrhythmia and slowing down the pulse, which is called the center of the eye reflex."

"Well, no wonder the students who did not go to the internship came on stage."

"The reflex arc is the trigeminal nerve ocular branch to the trigeminal nerve pons nucleus, and then to the dorsal vagus nerve nucleus, and finally the myocardium responds, which can lead to cardiac arrest in severe cases. The same is true for this patient. Cardiac arrest caused by vagus reflex, right? "
Chapter completed!