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PANCE Practice Test

Category - PA

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While evaluating the diagnosis of atrial fibrillation, all of the following EKG findings are typically present EXCEPT:
  1. Irregular rhythm
  2. QRX complex of ≤ 0.12 seconds
  3. No visible P waves
  4. Abnormal P waves
Explanation
Answer: C - Atrial fibrillation is diagnosed on an EKG when an irregular heart beat is suspected. Characteristic findings are the absence of P waves, with unorganized electrical activity in their place, and irregular R-R intervals due to irregular conduction of impulses to the ventricles.
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