What amount of current flow through the human body can cause shock that may cause you to go into cardiac arrest?

The correct amount of current that can cause shock severe enough to potentially lead to cardiac arrest is around 50 milliamperes or more. At this level of current, the electrical energy can interfere with the normal rhythm of the heart, which may result in ventricular fibrillation, a condition where the heart’s electrical activity becomes chaotic and it can no longer pump blood effectively. Currents in the range of 50 milliamperes reach a threshold where the risk of serious injury or fatal outcomes, such as cardiac arrest, increases significantly.

Lower levels of current, such as those less than 50 milliamperes, typically do not pose the same high risk for fatal cardiac responses and are generally considered less dangerous. Voltage levels, while important in understanding how electricity can cause harm, do not directly correlate with the health impact; rather, it is the current (the flow of electric charge) that is a more critical factor in assessing the risk of electrical shock.