The sudden cardiac arrest

However, it was only for a moment before the heart rate of the experimental fell to zero, not giving Zheng Ren a chance to react at all.

Zheng Ren immediately put down the equipment in his hands and started to perform chest compressions. He then bought an anesthetist assistant to help in the emergency treatment.

He performed cardiac compressions and instructed the anesthetist to inject lidocaine, epinephrine, and atropine into the patient's vein.

However, it was completely useless. No matter how much medicine was given and no matter how hard external chest compressions were performed, the heart rate of the experimental body would not come back.

In the end, Zheng Ren made an incision and performed external chest compressions, but the patient's heart still did not work. It was as if the patient's heart had long lost its vitality, and there was no autonomous contraction at all.