Premature junctional/nodal beat

Premature ventricular contraction

Bundle branch block

Premature atrial beat

Paroxysmal atrial tachycardia

BBB has a P wave, PVC does not

BBB has a wide QRS, PVC does not

PVC has a wide QRS, PVC does not

PVC has a P wave, BBB does not

None of these

>100 beats/minute

<80 beats/minute

>90 beats/minute

>120 beats/minute

<60 beats/minute

First Degree AV Block

Second Degree AV Block, Mobitz Type 1 (Wenckebach)

Second Degree AV Block, Mobitz Type 2

Third Degree AV Block

All of these

Ventricular fibrillation

Atrial fibrillation

Bundle branch block

Third degree AV block

First degree AV block

Resting heart rate = 45bpm, patient is not an endurance athlete

Resting heart rate = 45 bpm, patient is an endurance athlete

Resting heart rate = 65 bpm, patient is an endurance athlete

Resting heart rate = 65 bpm, patient is not an endurance athlete

Resting heart rate = 60 bpm, patient is an endurance athlete

Ejection fraction < 40%

Ejection fraction < 50%

Ejection fraction < 45%

Ejection fraction <55%

Ejection fraction < 60%

.14 seconds

.06 seconds

.10 seconds

.24 seconds

.22 seconds

Prolonged P-R interval

Absent P wave

Multiple P waves prior to the QRS complex

“Sawtooth” shaped P waves

Multiple QRS complexes prior to a P wave

Atrial flutter

Atrial fibrillation

Premature ventricular contraction (PVC)

Ventricular tachycardia

First degree atrioventricular (AV) block