EKG certification Certification EKG Certification Trivia 1

Question 1

What is the normal range for the PR interval on a standard EKG?

Accepted Answer

0.12–0.20 seconds

Answer

0.06–0.10 seconds

Answer

0.22–0.30 seconds

Answer

0.30–0.40 seconds

Question 2

Which EKG pattern shows progressive lengthening of the PR interval until a QRS complex is dropped?

Accepted Answer

Mobitz Type I (Wenckebach) block

Answer

First-degree AV block

Answer

Mobitz Type II block

Answer

Complete heart block

Question 3

On a standard EKG tracing run at 25 mm/sec, how many large squares represent 1 second?

Accepted Answer

5 large squares

Answer

2 large squares

Answer

3 large squares

Answer

10 large squares

Question 4

A patient's EKG shows ST-segment elevation of 2 mm in leads II, III, and aVF. Which coronary artery territory is most likely involved?

Accepted Answer

Right coronary artery

Answer

Left anterior descending artery

Answer

Left circumflex artery

Answer

Left main coronary artery

Question 5

Which finding on an EKG is most consistent with hyperkalemia?

Accepted Answer

Tall, peaked T waves

Answer

Prolonged QT interval

Answer

Prominent U waves

Answer

Short PR interval

Question 6

In a patient with sinus bradycardia, what is the expected heart rate on the EKG?

Accepted Answer

Less than 60 beats per minute

Answer

60–80 beats per minute

Answer

80–100 beats per minute

Answer

Greater than 100 beats per minute