At a minimum threshold, how many milliamps...

Question 1 of 292185eccefa3bacbc34ba4d47e68

At a minimum threshold, how many milliamps of current through the body produces a condition where most people would suffer ventricular fibrillation and could only be resuscitated with a ventricular defibrillator?

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Question 1 of 29218

🔍 Key Concepts

• Physiological effects of electric shock at different current levels (mA) • Difference between perception/let-go threshold and ventricular fibrillation threshold • How duration of exposure (like 5 seconds) changes the danger level

💭 Think About

• Which answer choices clearly represent currents that are only barely perceptible or just painful, versus those that are likely to affect the heart rhythm? • Look at the option that includes both a current value and a time duration—why might time be specified there but not in the others? • Think about safety standards: what current range do they typically identify as the onset of life‑threatening heart disturbances rather than just muscle contraction?

✅ Before You Answer

• Identify which range (in mA) is commonly associated with “let-go” currents (where muscles seize and you can’t release a conductor) and which is associated with ventricular fibrillation. • Check which choice is explicitly tied to a multi‑second duration, and how prolonged exposure at that current would affect the heart. • Make sure you separate pain/muscle contraction levels from the onset of cardiac arrest/ventricular fibrillation when choosing your answer.