Question 56 · LEK · Pre-excitation syndrome

In what situation should the electric cardioversion of atrial fibrillation be performed immediately in a patient with Wolff-Parkinson-White syndrome?

  1. A. coexisting hypokalemia.
  2. B. fibrillation with rapid ventricular rate.
  3. C. there are documented numerous additional electrical conduction pathways.
  4. D. in every case.
  5. E. none of the above-mentioned case.
Hint

In pre-excited AF the accessory pathway may conduct at very high rates and degenerate into VF; AV-nodal blockers are hazardous.

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