• yesman@lemmy.world
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    5 months ago

    FYI: Defibrillators don’t start the heart, they stop it.

    The heart doesn’t stop in many heart attacks. Instead it just beats erratically and in a way that doesn’t pump blood well. Shocking the heart to stop it (what a defib does) causes the nerve cells to “reboot” and start beating regularly again.

    Shocking a victim who’s heart has stopped is useless and automatic defibrillators won’t go off until they’ve detected the arrhythmia.

    • angrystego@lemmy.world
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      5 months ago

      Yes, thank you, I’m glad you mentioned it here, it doesn’t happen often enough. I mean, it’s even in the name, right? Defibrillator gets rid of fibrillation - the erratic beating!

    • MindTraveller
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      5 months ago

      CPR, however, can restart a stopped heart. And a defibrillator will hopefully be involved in CPR because if CPR brings the heart back with arrhythmia, a defib can fix it.

      Doctors going on about how defibrillation doesn’t start a heart is the same tier of useless factoid as astronomers smugly pointing out that the earth doesn’t orbit the sun; it orbits the center of mass of the solar system.