ECG Test
Study online at https://quizlet.com/_a0twyh
1. Sinus Dysrhyth- cycling: slowing, then speeding up (inspiration), and then slowing down (expira-
mia tion) again
HR 60-100; irregular rhythm, P waves & QRS are normal
2. Sinus Arrest a long pause between beats; an absence of a PQRST
"occurs when the SA node fails to initiate an impulse"
3. PAC Rate: typically normal
Rhythm: typically regular
P waves: most are upright and uniform; with some early beats; T and P waves will
look like bunny ears (know bigeminal, trigeminal, quadrigeminal, couplet)
PR Interval: maybe normal, depending on origin of PAC
QRS width: typically normal
4. SVT Rate: Fast (150-250 bpm)
Rhythm: Regular
P Wave: Merged with T wave
PR Interval: Normal (0.12 sec)
QRS: Normal (.10 sec)
5. A-fib Rate: Atrial rate 350-400 bpm. Ventricular rate is variable.
Rhythm: Ventricular rate is irregular (one of the hallmark signs of atrial fibrillation).
P waves: Absent; fibrillatory waves (or small looking bumps) are seen.
PR interval: Not applicable.
QRS width: £ 0.12 seconds.
Treatment: medicate with anticoags to prevent emboli; Cardizem (diltiazem); car-
diovert if CASH
1/9
, ECG Test
Study online at https://quizlet.com/_a0twyh
6. Atrial Flutter Rate: Atrial rate is 250-350 bpm. Ventricular rate varies according to AV node
conduction.
Rhythm: Atrial regular; ventricular may be regular or irregular (again, depending
on AV node conduction).
P waves: Absent. Only flutter or sawtooth looking waveforms. (know conduction;
how many "ps" to QRS)
PR interval: Not applicable.
QRS width: £ 0.12 seconds.
7. Atrial Paced vertical spike before P wave
8. 1 Degree Block not an actual "block" but a delay in conduction
Rate: Varies depending on the underlying rhythm.
Rhythm: Atrial and ventricular regular
P waves: Upright and normal. One P precedes every QRS.
PR interval: >0.20 seconds and is constant.
QRS width: £ 0.12 seconds.
9. 2 Degree Type 1 progressive prolongation of the PR interval
(Wenckebach) Rate: Atrial regular; ventricular rate is slightly slower. Typically between 60-90 bpm.
Rhythm: Atrial regular. Ventricular irregular.
P waves: Upright and normal. Some P's are not followed by a QRS (more Ps than
QRSs).
PR interval: Progressively longer until one P wave is not followed by a QRS complex.
After the blocked beat, the cycle starts again.
QRS width: £ 0.12 seconds.
10. 2 Degree Type 2
2/9
Study online at https://quizlet.com/_a0twyh
1. Sinus Dysrhyth- cycling: slowing, then speeding up (inspiration), and then slowing down (expira-
mia tion) again
HR 60-100; irregular rhythm, P waves & QRS are normal
2. Sinus Arrest a long pause between beats; an absence of a PQRST
"occurs when the SA node fails to initiate an impulse"
3. PAC Rate: typically normal
Rhythm: typically regular
P waves: most are upright and uniform; with some early beats; T and P waves will
look like bunny ears (know bigeminal, trigeminal, quadrigeminal, couplet)
PR Interval: maybe normal, depending on origin of PAC
QRS width: typically normal
4. SVT Rate: Fast (150-250 bpm)
Rhythm: Regular
P Wave: Merged with T wave
PR Interval: Normal (0.12 sec)
QRS: Normal (.10 sec)
5. A-fib Rate: Atrial rate 350-400 bpm. Ventricular rate is variable.
Rhythm: Ventricular rate is irregular (one of the hallmark signs of atrial fibrillation).
P waves: Absent; fibrillatory waves (or small looking bumps) are seen.
PR interval: Not applicable.
QRS width: £ 0.12 seconds.
Treatment: medicate with anticoags to prevent emboli; Cardizem (diltiazem); car-
diovert if CASH
1/9
, ECG Test
Study online at https://quizlet.com/_a0twyh
6. Atrial Flutter Rate: Atrial rate is 250-350 bpm. Ventricular rate varies according to AV node
conduction.
Rhythm: Atrial regular; ventricular may be regular or irregular (again, depending
on AV node conduction).
P waves: Absent. Only flutter or sawtooth looking waveforms. (know conduction;
how many "ps" to QRS)
PR interval: Not applicable.
QRS width: £ 0.12 seconds.
7. Atrial Paced vertical spike before P wave
8. 1 Degree Block not an actual "block" but a delay in conduction
Rate: Varies depending on the underlying rhythm.
Rhythm: Atrial and ventricular regular
P waves: Upright and normal. One P precedes every QRS.
PR interval: >0.20 seconds and is constant.
QRS width: £ 0.12 seconds.
9. 2 Degree Type 1 progressive prolongation of the PR interval
(Wenckebach) Rate: Atrial regular; ventricular rate is slightly slower. Typically between 60-90 bpm.
Rhythm: Atrial regular. Ventricular irregular.
P waves: Upright and normal. Some P's are not followed by a QRS (more Ps than
QRSs).
PR interval: Progressively longer until one P wave is not followed by a QRS complex.
After the blocked beat, the cycle starts again.
QRS width: £ 0.12 seconds.
10. 2 Degree Type 2
2/9
