EKG certification Certification FREE EKG Certification Trivia Question and Answers 2

Question 1

Which EKG finding is characterized by a shortened PR interval and a delta wave?

Accepted Answer

Wolff-Parkinson-White syndrome

Answer

WPW syndrome features a short PR interval, delta wave, and widened QRS due to an accessory pathway.

Question 2

What is the normal duration of the QRS complex?

Accepted Answer

0.06–0.10 seconds

Answer

A normal QRS complex lasts 0.06 to 0.10 seconds, representing ventricular depolarization.

Question 3

An EKG shows absent P waves with an irregularly irregular rhythm. What is the most likely interpretation?

Accepted Answer

Atrial fibrillation

Answer

Atrial fibrillation is defined by absent P waves replaced by fibrillatory waves and an irregularly irregular ventricular response.

Question 4

Which lead is best for evaluating right ventricular hypertrophy on a 12-lead EKG?

Accepted Answer

V1

Answer

Lead V1 sits over the right ventricle and shows tall R waves when right ventricular hypertrophy is present.

Question 5

What does a prolonged QT interval increase the risk of?

Accepted Answer

Torsades de pointes

Answer

A prolonged QT interval predisposes to torsades de pointes, a polymorphic ventricular tachycardia that can degenerate into ventricular fibrillation.

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