Crucial Exams

BCEN CEN Practice Question

Which statement best describes the comparative hazards of alternating current (AC) and direct current (DC) in low-voltage (< 1000 V) electrical injuries?

  • AC is generally more dangerous than DC because it produces tetanic muscle contractions and can trigger ventricular fibrillation at lower current intensities.

  • AC and DC carry equal risk; tissue damage depends only on the applied voltage, not on the type of current.

  • The type of current is irrelevant; only the duration of contact determines the severity of electrical injury.

  • DC is more dangerous than AC because it more readily induces ventricular fibrillation at lower current intensities.

BCEN CEN
Environment and Toxicology Emergencies, and Communicable Diseases
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