Week 2: ECG Interpretations

Question 1

Atrial depolarization is linked to what?
a) P wave
b) QRS complex
c) T wave
d) PR interval

Answer 1

A) P wave

Question 2

Ventricular depolarization and atrial repolarization is linked to what?
A) P wave
B) QRS complex
C) T wave
D) ST interval

Answer 2

B

Question 3

Ventricular repolarization is linked to what?
A) P wave
B) QRS complex
C) T wave
D) ST interval

Answer 3

C

Question 4

Which arrhythmia/dysrhythmia matches the following description:
“P waves are not seen and there are irregularly irregular QRS complexes. This is non-discernable.”

Answer 4

A fib

Question 5

Which arrhythmia / dysrhythmia has a “sawtooth” pattern?

Answer 5

A flutter

Question 6

This arrhythmia / dysrhythmia is benign and rarely needs treatment.

Answer 6

Premature Atrial Contractions (PAC)

Question 7

This arrhythmia/ dyrhythmia is “out of step” with the normal R-R interval.

Answer 7

Premature Ventricular Contractions (PVC)

Question 8

Which arrhythmia/dysrhythmia is considered to be an emergency and has broad/bizarre QRS complexes?

Answer 8

V Tach

Question 9

What can v tach lead to?

Answer 9

Hemodynamic instability

Question 10

Which arrhythmia/dysrhythmia has a low survival rate and chaotic, irregular intervals?

Answer 10

V fib

Question 11

The 2 common causes for V Fib are:

Answer 11

• coronary artery disease
• MI