ECG Interpretation Quiz

What is the minimum length of an ECG strip required for heart rhythm analysis?

• 10 seconds

• 6 seconds

• 12 seconds

• 3 seconds

Which of the following is NOT one of the three R's used to analyze P waves?

• Resemblance

• Regularity

• Rate

• Rhythm

What is the normal atrial rate range for a normal sinus rhythm?

• 40-60 beats per minute

• 100-140 beats per minute

• 60-100 beats per minute

• 80-120 beats per minute

What should be the maximum duration of a P wave in a normal ECG?

• 0.08 seconds

• 0.10 seconds

• 0.12 seconds

• 0.14 seconds

What does the regularity of QRS complexes indicate in an ECG?

• Normal sinus rhythm

• Ventricular tachycardia

• Atrial fibrillation

• Atrial flutter

What is the maximum duration for a QRS complex in a normal ECG?

• 0.10 seconds

• 0.08 seconds

• 0.14 seconds

• 0.12 seconds

Which interval should be flat with no elevation or depression in a normal ECG?

• RR interval

• QT interval

• ST segment

• PR interval

What is the normal range for the QT interval in a standard ECG?

• 0.20 to 0.30 seconds

• 0.25 to 0.35 seconds

• 0.30 to 0.40 seconds

• 0.35 to 0.44 seconds

In the practical application, what was the determined rate of the heart rhythm?

• 60 beats per minute

• 70 beats per minute

• 80 beats per minute

• 90 beats per minute

What is the significance of having one QRS complex after each P wave?

• Indicates atrial fibrillation

• Confirms ventricular tachycardia

• Suggests atrial flutter

• Shows normal sinus rhythm