8/1/25, 4:35 PM MAYO ECG Exam Questions with 100% Correct Answers | Verified | Latest Update 2025!!
MAYO ECG Exam Questions with 100% Correct Answers |
Verified | Latest Update 2025!!
1st degree AV block prolonged PR interval
PR interval long, longer, drop
2nd degree AV block type 1
the drop is a P wave not followed by a QRS
Constant PRI w >.2, random
2nd degree AV block type 2
dropped QRS R waves
irregular
atria and ventricles beat
3rd degree AV block independently of each other (P
waves have no relation to QRS
waves)
P and R waves both regular
<60
Sinus Bradycardia
normal sinus rhythm
heart rhythm originating in the sinoatrial node with a
normal sinus rhythm
resting rate of 60 to 100 beats per minute
Rate:Atrial 250-350
Ventricular: 100 -175
P: Irregular or absent, often
Atrial Flutter
"saw tooth" QRS: Normal
Conduction: AV Block (2:1
> 3:1, 4:1) Rhythm:
Regular (usually)
in many cases no P wave followed by a large QRS
PVC (Premature Ventricular
Contraction) complex that is premature, followed by a
compensatory pause
ventricular pacing spike prior to QRS Complex
atrial pacing spike prior to P wave
Arises from an irritable focus within the AV Junction.
Premature Junctional Complex Characteristics include an absent or inverted P wave,
1/4
MAYO ECG Exam Questions with 100% Correct Answers |
Verified | Latest Update 2025!!
1st degree AV block prolonged PR interval
PR interval long, longer, drop
2nd degree AV block type 1
the drop is a P wave not followed by a QRS
Constant PRI w >.2, random
2nd degree AV block type 2
dropped QRS R waves
irregular
atria and ventricles beat
3rd degree AV block independently of each other (P
waves have no relation to QRS
waves)
P and R waves both regular
<60
Sinus Bradycardia
normal sinus rhythm
heart rhythm originating in the sinoatrial node with a
normal sinus rhythm
resting rate of 60 to 100 beats per minute
Rate:Atrial 250-350
Ventricular: 100 -175
P: Irregular or absent, often
Atrial Flutter
"saw tooth" QRS: Normal
Conduction: AV Block (2:1
> 3:1, 4:1) Rhythm:
Regular (usually)
in many cases no P wave followed by a large QRS
PVC (Premature Ventricular
Contraction) complex that is premature, followed by a
compensatory pause
ventricular pacing spike prior to QRS Complex
atrial pacing spike prior to P wave
Arises from an irritable focus within the AV Junction.
Premature Junctional Complex Characteristics include an absent or inverted P wave,
1/4
