ecg learning center logoNormal ECG Characteristics and Measurement Abnormalities (Lessons III and IV)

Question 1: What is the PR interval in this ECG?

What is the PR interval in this ECG?
A. 0.12 sec
B. 0.16 sec
C. 0.20 sec
D. 0.28 sec
E. 0.50 sec

Question 2: What is the QRS duration seen here?

What is the QRS duration seen here?
A. 0.04 sec
B. 0.06 sec
C. 0.10 sec
D. 0.12 sec
E. 0.14

Question 3: What is the QT interval of this ECG, and is it normal for this heart rate?

What is the QT interval of this ECG, and is it normal for this heart rate?
A. 0.34 sec & no
B. 0.34 sec & yes
C. 0.40 sec & no
D. 0.40 sec & yes
E. 0.48 sec & maybe

Question 4: What is the PR interval of this ECG?

What is the PR interval of this ECG?
A. 0.08 sec
B. 0.12 sec
C. 0.22 sec
D. 0.28 sec
E. 80 msec

Question 5: What is the QRS duration seen here?

What is the QRS duration seen here?
A. 0.04 sec
B. 0.08 sec
C. 0.12 sec
D. 0.14 sec
E. 0.16 sec

Question 6: What is the QT Interval in this ECG strip?

What is the QT Interval in this ECG strip?
A. 0.34 sec
B. 0.40 sec
C. 0.44 sec
D. 0.48 sec
E. 0.20 sec

Question 7: What is the approximate heart rate?

What is the approximate heart rate?
A. 50 bpm
B. 65 bpm
C. 75 bpm
D. 90 bpm
E. 100 bpm

Question 8: All of the following must be included in ECG interpretation except:

A. Conduction Analysis
B. PU interval
C. Waveforms
D. Rhythm Analysis
E. QT interval

Question 9: What potentially fatal abnormality can be seen in this ECG?

What potentially fatal abnormality can be seen in this ECG?
A. Increased PR interval
B. Poor R wave progression (V1 - V3)
C. Increased QT interval
D. Decreased QT interval
E. Increased P wave amplitude

Question 10: What is the approximate heart rate of this ECG?

What is the approximate heart rate of this ECG?
A. 55 bpm
B. 70 bpm
C. 90 bpm
D. 100 bpm
E. 110 bpm