ECG Learning Center

Normal ECG Characteristics and Measurement Abnormalities (Lessons III and IV) | back to Tests

Question 1: 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?

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?

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?

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?

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?

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?

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?

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?

A. 55 bpm

B. 70 bpm

C. 90 bpm

D. 100 bpm

E. 110 bpm