Which statement about lightning strikes is correct?

• A. Lightning strikes may cause cardiac dysrhythmias that spontaneously resolve
• B. Lightning strikes always cause immediate cardiac arrest
• C. Lightning strikes never affect the heart
• D. Lightning strikes only affect the skin

Answer: (A)

Lightning delivers a sudden, massive electrical surge. When that current passes through the chest, it can disrupt the heart’s electrical conduction and trigger a dysrhythmia. Some of these rhythm disturbances are brief and may return to normal on their own, so the heart rhythm can spontaneously normalize without lasting cardiac arrest. This is why the statement that lightning strikes may cause cardiac dysrhythmias that spontaneously resolve is correct. It’s important to remember that the heart can be affected by lightning, so immediate cardiac monitoring and supportive care are essential, even if the person initially seems to recover. Lightning injuries can also involve the nervous system, muscles, and skin, so a broad assessment and ongoing observation are key.