Zheng Ren took a 50ml syringe in his hand. After simple disinfection, he inserted a needle 0.5cm above the pubis.

The bladder full of urine is against the abdominal wall, so it is not difficult to enter the needle disease. Then Zheng Ren began to draw out the urine accumulated in the bladder.

Fill a tube with 50ml syringe needle, about 60ml, and suck it for 6 times. Zheng Ren looked at ECG monitoring on his side.

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

"Continue cardiac compression, Gu Xiaoran! Prepare for electric defibrillation!"

"Adrenaline and lidocaine are injected intravenously."

Gu Xiaoran took the head of electric defibrillation from the itinerant nurse and asked, "how much energy do you give?"

“200J。”

"Mr. He, I have defibrillation." Gu Xiaoran was still very careful to say hello to Lao he, but he saw Lao he holding a syringe and waiting for him to do defibrillation first. He was inexplicably alarmed.

It's like a machine that works well. It suddenly gets stuck for its own reasons.

"Xiao ran, give it to me and hold on." 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 ~"

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

"Continue." Zheng Ren commanded the rescue.

As the heart rate appeared, his words were not as dense as they were at the beginning.

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

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

"Oh, good." Standing in the operation area, Yu watched the heart rate and ECG displayed on the patient's ECG monitoring from normal to disappear, and from disappearance to normal. The process had nothing to do with himself. It was like watching a very standard teaching of emergency rescue.

It's just... I seem to be the one who is the master. I should be the one who stands in the middle and directs the rescue. Looking at boss Zheng's command, Mr. Yu was a little envious.

Zheng Ren took a look at the patient's ECG, which had stabilized, and finally took a long breath.

"It's all right. President Yu will make a fistula first and then take out the nails." Zheng Rendao.

Although ECG monitoring still occasionally sends out two alarms, it has gradually returned to normal with three times of electric defibrillation and the drug action of adrenaline, lidocaine and atropine.

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

After a few minutes of observation, Yu always paved the sterile sheet of the abdomen and began to do 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 the cap, not because he was nervous, but just half kneeling on the operating table for emergency chest compression. The posture was too awkward.

In fact, it's enough to add a footstool under the operating table, but at that time, the heart rate suddenly fell like a cliff, and the ECG was pulled into a straight line. Who has time to think about so many things.

It must come as soon as possible.

"Urinary retention in the bladder stimulates vagus nerve *". Zheng Ren doesn't want to go on stage to help Yu Zong. It's just a cystostomy operation. By the way, explore whether the 50ml syringe needle has damaged other organs. This kind of operation is hardly an operation. It can only be said that Zheng Ren won't go on.

"Is it rich clinical experience?" Su Yun subconsciously blew a breath. A stream of hot air couldn't pass through the three-layer mask and overflowed along the gap above the bridge of his nose.

"Well, are you sure?" Zheng Ren said directly and frankly, took off his sterile gloves and sat back on the original stool.

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

Just now, when the patient's heart rate fell precipitously and the ECG was directly pulled into a straight line, people were ignorant and didn't know they were afraid. But now everything is over. Looking back, Yu Zong is afraid.

Damn it! A good patient came in by himself. How did he die suddenly after a few minutes of surgery?!

"Just said, the vagus nerve is stimulated." Zheng Ren said faintly, leaning back against the wall and feeling the coolness from the wall, he was also a little happy.

Fortunately, I couldn't find the answer. When I came out of the operating room of the system, I heard Su Yun and president Yu talking about the high bladder pressure. Urine may spray out at the moment of opening the last nail.

This idea made Zheng Ren turn back to the system operating room and perform cystostomy before operation. The experimental body did not have cardiac arrest.

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

But it's good to save it, Zheng Ren thought.

Seeing that boss Zheng was reluctant to speak, president Yu had to look for the pubic bone and prepare to cut the shareholding and make a cystostomy, while looking at Brother Yun with an inquiring eye.

"The vagus nerve is widely distributed in all tissues and organs of the body, and completes various physiological activities in the form of reflex arc with the central nervous system." Su Yun said and asked, "have you ever had eye surgery?"

Mr. Yu shook his head.

"Where did you graduate from? You didn't go to ophthalmology during your internship and internship?"

"Yes, but the professor certainly won't let me do it. It's good to go to the operating room and stand aside to have a look. If you meet a fucking Professor, you can't even go to the operating room. Just write a medical record below." Yu Zongdao.

"Don't talk about the fuck. I guess you'll soon become the kind of fuck professor you say." Su Yun smiled. "What did the boss say? In the end, you became the kind of person you hated most in the past."

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

But at this time, his smile was so stiff that he didn't slow down from the sudden change.

Accidents in the operating room can happen anytime, anywhere. God knows where there will be problems. However, the problem appeared quickly and solved faster. Mr. Yu hasn't responded yet. The rescue is over.

It's just... What does it have to do with ophthalmology?

"Brother Yun, what's the matter with ophthalmology? Go on." General Yu asked while cutting the skin and separating it layer by layer.

"There is a rare condition in ophthalmic surgery, which is called eye heart reflex. When the eye muscle is pulled, it will produce the reaction of vagus nerve, cause excessive excitation of vagus nerve, lead to arrhythmia and slow pulse, which is called eye heart reflex."

"Well, no wonder students who don't go to internship come on stage."

"The reflex arc is from the eye branch of the trigeminal nerve to the pontine nucleus of the trigeminal nerve, then to the dorsal nucleus of the vagus nerve, and finally the myocardium reacts, which can seriously lead to cardiac arrest. The same is true for this patient. The cardiac arrest caused by the vagus nerve reflex, isn't it, boss."

"Yes." Zheng Ren nodded.