When Wu Xiangdong was preparing for the next round of heart massage, a faint fluctuation suddenly came from his fingertips. Although he was separated by a thick layer of latex gloves, he still clearly captured the message.

Based on the physiological structure of the heart, Wu Xiangdong accurately found the location of the fluctuation, which is the electrical signal generated by the sinoatrial node located at the junction of the right atrium and the superior vena cava. The sinoatrial node serves as the pacemaker of the heart and is present in each bundle.

Branch missions played a vital role.

Wu Xiangdong used his fingertips to stimulate the sinus node little by little, but the feeling just now seemed to have disappeared, and he could not feel a trace of fluctuation on his fingertips.

He didn't want to give up this once-in-a-lifetime opportunity, so Wu Xiangdong immediately shouted to everyone: "The patient has a heartbeat, and the adrenaline is ready."

"Is there a heartbeat? That's great!" Li Yanan, who had been watching silently, heard the news from Wu Xiangdong, and his eyes suddenly brightened.

She immediately followed Wu Xiangdong's instructions and took out a row of ten epinephrine tubes from the rescue vehicle. She also took out a 2ml syringe from the drawer, opened the ampoule and drained the epinephrine cleanly.

Li Yanan looked excited and asked Wu Xiangdong: "Doctor Wu, 1 mg of epinephrine is ready. Do you want to give it an intravenous injection now?"

Faced with the inquiry, Wu Xiangdong shook his head: "Based on the current situation, the patient's hypoperfusion circulation blood volume is insufficient, and intravenous epinephrine will not have a very good effect. You can use a 10ml syringe for me to inject this row of blood."

All the adrenaline is drained."

"Pump it all out?" Wu Xiangdong's words made Li Yanan's heart tighten. He had to withdraw so much adrenaline. Isn't the effect of this medicine a bit too strong?

After all, the specification of a tube of epinephrine is 1 mg, which means that the solution is only 1 ml. Although it seems to others that it is just a dose of a few drops of water, it is enough to make a normal heart beat more than 200 times/min in a short period of time, and Wu Xiangdong

He actually had to use ten tubes, which made Li Yanan not dare to think about it any further.

"Do you want to administer the drug directly into the heart?" Wan Zhihua, as an old comrade, naturally thought more comprehensively than Li Yanan. When he saw that Wu Xiangdong wanted a 10ml syringe for epinephrine injection, he immediately thought of this method.

Wan Zhihua's guess made everyone look stunned. After all, this operation is too difficult. In addition to mastering the dose of cardiac injection, we must also pay attention to the choice of puncture site. In case of accidentally inserting in the wrong place, heart rupture or pericardium may occur.

A series of complications such as congestion will directly declare rescue failure.

"Don't worry, you just need to bring the defibrillator over later and leave the rest to me." Wu Xiangdong smiled. He seemed to be very confident in the operation of direct injection of medicine into the heart.

"I really don't know where you learned these skills from. It's so perverted." Wu Xiangdong's confidence seemed to have infected others. Wan Zhihua muttered while pushing the defibrillator over.

At this time, Li Yanan had already drawn ten doses of epinephrine into the syringe. Wu Xiangdong continued to massage his heart with his left hand, and stretched out his right hand to take the syringe and hold it in his hand.

The entire syringe was filled with transparent liquid, and drops of water were emitting from the slender needle. Wu Xiangdong adjusted the angle and waited for Li Yanan to use alcohol to perform routine skin disinfection on the puncture site.

Because it was administered directly to the heart, Li Yanan was particularly careful when disinfecting. The cotton ball soaked in alcohol exuded a pungent smell. She wiped it on the skin of the precordial area over and over again. Even because of the strength of the disinfection, the alcohol cotton ball had already been stained.

Covered with sebum, it forms a clear boundary with unsterilized skin.

"Okay, it's almost done." Wu Xiangdong couldn't help but remind her when he saw that Li Yanan was still disinfecting and wiping, and even the alcohol solution spilled onto her back because her skin was saturated.

"I'm sorry, I'm a little nervous." Li Yanan immediately stopped what he was doing, with nowhere to put his hands, and a hint of timidity on his face.

Wu Xiangdong didn't say much when he saw it. He knew that Li Yanan was under great pressure at this time. After all, what happened tonight would never happen again in this life.

With the disinfection completed, Wu Xiangdong also focused on intracardiac injection. Based on the position of the patient's sternum, intercostal space and xiphoid process, he finally chose to insert the needle 1 cm below the left costal arch.

Wu Xiangdong held the syringe in his right hand and aimed the needle tip vertically at the skin. As his arm moved down, with a popping sound, the needle tip passed through the skin and subcutaneous tissue layer. He felt the resistance from the needle tip and moved forward little by little.

When the needle tip reached an angle of 20 degrees with the skin of the abdominal wall, Wu Xiangdong aimed at the bottom of the heart and penetrated directly into the ventricular cavity. The force was so strong that even his left hand, which was attached to the heart, could feel the impact of the needle tip penetrating into the heart.

"Help me fix the needle plug, and then pull back the needle handle to see if it is in the ventricular cavity." Wu Xiangdong said to Li Yanan who was standing aside.

Due to the need for intracardiac injection, Wu Xiangdong could only suspend the heart massage with his left hand. At this time, the patient was in the stage of cardiac arrest. If the operation was not performed quickly, problems would likely occur.

Seeing that Wu Xiangdong's tone was urgent, Li Yanan immediately adjusted her position and grabbed the needle plug with her left hand to prevent her fingertips from swinging left and right or moving up and down. Then she used her right thumb to hold the syringe, and her index finger and ring finger held the needle handle and slowly pulled it back.

Suddenly, a stream of almost dark-black viscous blood was drawn down the needle into the syringe. This is black blood caused by insufficient blood circulation caused by cardiac arrest.

The moment Wu Xiangdong saw the blood appearing, he gave Li Yanan another order: "Make sure the needle tip is in the ventricular cavity, inject 5 mg of epinephrine intracardially, turn on the defibrillator and open the electrode pads, and wait for my instructions."

"yes!"

Everyone said in unison, Li Yanan injected the drug, Wan Zhihua turned on the defibrillator, and the others stood ready to wait for Wu Xiangdong's medical advice.

At this stage of the operation, everyone's attention was focused on Wu Xiangdong. At this time, he was bending over the patient like a sculpture and motionless. The muscles of his left arm protruding into the patient's abdominal cavity were bulging.

, the fingers attached to the heart are constantly stimulating the patient's sinoatrial node.

Time passed by little by little, and the entire clinic was quiet. Everyone held their breath and did not dare to speak, for fear that making a little noise would affect Wu Xiangdong's operation.

Everyone's face was full of tension and uneasiness, but Wu Xiangdong was extremely calm. While he kept stimulating the patient's heart according to his own rhythm, he was silently thinking about time in his heart.

"1001,1002,1003..."

The seconds on the clock on the white wall kept swinging, and Wu Xiangdong's left hand kept squeezing his heart. At this time, familiar fluctuations came through his fingertips again.

Once, twice, three times, soon as the sinoatrial node continues to release electrical signals, the entire cardiac conduction system begins to operate, including the sinoatrial node, internodal bundle, atrioventricular node, His bundle, left and right bundle branches, Pu
Chapter completed!