NCLEX RN Practice Question 427

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Premature ventricular contractions (PVCs

Description

  • Early ventricular complexes result fromincreased irritability of the ventricles.
  • PVCs frequently occur in repetitive patternssuch as bigeminy, trigeminy, and quadrigeminy.
  • The QRS complexes may be unifocal ormultifocal.

Interventions

  • Notify the physician if PVCs occur.
  • Identify the cause and treat based on the cause.
  • Evaluate oxygen saturation to assess for hypoxemia, which can cause PVCs.
  • Administer oxygen as prescribed.
  • Evaluate electrolytes, particularly the potassium level, because hypokalemia can cause PVCs.
  • Lidocaine (Xylocaine) may be prescribed. For the client experiencing PVCs, notify the physician if the client complains of chest pain or if the PVCs increase in frequency, are multifocal, occur on the T wave (R on T), or occur in runs of ventricular tachycardia.

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