NCLEX RN Practice Question 429

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Ventricular fibrillation


  • Impulses from many irritable foci in the ventricles fire in a totally disorganized manner.
  • VF is a chaotic rapid rhythm in which the ventricles quiver and there is no cardiac output.
  • VF is fatal if not successfully terminated within 3 to 5 minutes.
  • Client lacks a pulse, BP, respirations, and heart sounds.


  • Defibrillate the client immediately, up to 3 times consecutively at 200, 300, and 360 joules (J).
  • Initiate CPR.
  • Administer oxygen as prescribed.
  • Administer antidysrhythmic therapy as prescribed.

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