Ventricular Fibrillation current range?

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Study for the Low Voltage Qualification Test. Explore flashcards and multiple-choice questions with hints and explanations for each, ensuring thorough preparation!

Multiple Choice

Ventricular Fibrillation current range?

Explanation:
The amount of electrical current that can disrupt the heart’s rhythm enough to cause ventricular fibrillation (especially with mains-frequency AC) is typically in the range of about 100–200 mA. That magnitude is enough to disturb the heart’s electrical activity and trigger VF, whereas much smaller currents (a few milliamperes) may only be felt as a mild shock, and much larger currents (hundreds of milliamperes to amperes) are far more dangerous and can cause immediate, severe injury or arrest. So the 100–200 mA range best matches the current range that can induce ventricular fibrillation.

The amount of electrical current that can disrupt the heart’s rhythm enough to cause ventricular fibrillation (especially with mains-frequency AC) is typically in the range of about 100–200 mA. That magnitude is enough to disturb the heart’s electrical activity and trigger VF, whereas much smaller currents (a few milliamperes) may only be felt as a mild shock, and much larger currents (hundreds of milliamperes to amperes) are far more dangerous and can cause immediate, severe injury or arrest. So the 100–200 mA range best matches the current range that can induce ventricular fibrillation.

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