Which current flow causes extreme pain, respiratory arrest, and severe muscular contractions, with death being possible?

The current flow that causes extreme pain, respiratory arrest, and severe muscular contractions, which could potentially lead to death, is typically recognized around 50 milliamperes. At this level of current, the human body experiences significant physiological effects that can impair essential bodily functions. Specifically, currents in this range can result in a strong sensation of pain and cause involuntary muscle contractions, which can be particularly dangerous as they might lead to respiratory muscle failure.

This threshold is critical because it marks a point where the electrical effects on the nervous system and muscular control become severely compromised. Breathing may become difficult or impossible if the muscles responsible for respiration are affected by such electrical impulses. While lower currents can be painful and lower than 50 milliamperes may not always result in the same levels of severity, currents above this threshold may also present increased risks of fatal outcomes if one does not receive immediate medical attention.