EKG Question #10


The nurse admits a client to the cardiac floor for a scheduled intervention. The initial electrocardiogram depicts the following:

The nurse determines the rhythm is:


  1. Atrial fibrillation
    • Rationale:
  2. Atrial flutter
    • Rationale:
  3. Sick Sinus Syndrome
    • Rationale:
  4. Sinus Tachycardia
    • Rationale:



Atrial flutter has distinctive sawtooth pattern. With atrial flutter, electrical signals travel in an organized but abnormal motion causing the atria to beat faster than the ventricles. The rhythm may be normal. Atrial fibrillation also results in rapid atrial rhythms; however, atrial fibrillation produces unorganized, irregular beats. Sick sinus syndrome may produce bradycardia, sinus arrest, Sinoatrial exit block, and alternating tachycardia and bradycardia. Sinus tachycardia is depicted by regular rhythm with a rate greater than 100 beats per minute.

Learning Outcomes

Test Taking Tip

Video Rationale