AACN Telemetry Question and
Answers Updated 2026
.04 - number of seconds of 1 small box
.20 - number of seconds of 1 large box
3 - tic mark every ___ seconds
0.06-0.10 - QRS complex
0.30-0.44 - QT interval
R prime - subsequent upward
P waves, PR interval, QRS duration, rate, regularity - 5 things to look at for every
ECG
300, 150, 100, 75, 60, 50 - what is the HR if a QRS wave is ___ boxes from another
QRS wave for
1 box?
2 boxes?
3 boxes?
4 boxes?
5 boxes?
6 boxes?
5 - how many little boxes per big box?
sinus or atrial pacemaker - if a P wave is present, that means....
junctional or ventricular pacemaker - if a P wave is absent that means....
sinus or atrial - if the P wave is normal, same axis as QRS it means...
retrograde from AV or ventricle - if the P wave is not normal, different axis as QRS it
means...
1 pacemaker - if all P waves are alike that means..
multiple automaticity foci - if the P waves are not alike that means...
sinus or atrial pacemaker - it there is a P wave before each QRS that means...
junctional or ventricular pacemaker - if there is not a P wave before each QRS that
menas...
no AV dissociation (no 2nd or 3rd degree AV block) - if ther is a QRS after each P
wave that means....
, AV dissociation (2nd or 3rd degree AV block) - if there is not a QRS after each P
wave that means....
no AV block - if the PR interval is normal, that means....
1st degree AV block - if the PR interval is consistently increased....
2nd degree AV block type I (Wenckebach) - if the PR interval progressively
increases, that means....
3rd degree AV block - if the PR interval is totally variable that means...
supraventricular origin - if the QRS is narrow, ( < .12 sec) that means
ventricular - if the QRS is > .12 second that means
torsade de pointes - if the QT is > .4 seconds this will lead to....
increases, decreases - HR (increases/decreases) with inspiration and
(increases/decreases) with expiration for sinus arrhythmia
sinus arrhythmia -
sinus arrhythmia - Rate: normal
regularity: irregular
P waves: normal
PR interval: .12-.20 seconds
QRS duration: .04-.12 seconds
sinus bradycardia - SA node is depolarizing slower than normal, impulse is
conducted normally
sinus bradycardia -
sinus bradycardia - Rate: <60 MP
regularity: regular
P waves: normal
PR interval: .12-.20 seconds
QRS duration: .04-.12 seconds
sinus tachycardia - SA node is depolarizing faster than normal, impulse is conducted
normally. not a primary arrhythmia, a response
sinus tachycardia - Rate: > 100 BPM
regularity: regular
P waves: normal
PR interval: .12-.20 seconds
QRS duration: .04-.12 seconds
Answers Updated 2026
.04 - number of seconds of 1 small box
.20 - number of seconds of 1 large box
3 - tic mark every ___ seconds
0.06-0.10 - QRS complex
0.30-0.44 - QT interval
R prime - subsequent upward
P waves, PR interval, QRS duration, rate, regularity - 5 things to look at for every
ECG
300, 150, 100, 75, 60, 50 - what is the HR if a QRS wave is ___ boxes from another
QRS wave for
1 box?
2 boxes?
3 boxes?
4 boxes?
5 boxes?
6 boxes?
5 - how many little boxes per big box?
sinus or atrial pacemaker - if a P wave is present, that means....
junctional or ventricular pacemaker - if a P wave is absent that means....
sinus or atrial - if the P wave is normal, same axis as QRS it means...
retrograde from AV or ventricle - if the P wave is not normal, different axis as QRS it
means...
1 pacemaker - if all P waves are alike that means..
multiple automaticity foci - if the P waves are not alike that means...
sinus or atrial pacemaker - it there is a P wave before each QRS that means...
junctional or ventricular pacemaker - if there is not a P wave before each QRS that
menas...
no AV dissociation (no 2nd or 3rd degree AV block) - if ther is a QRS after each P
wave that means....
, AV dissociation (2nd or 3rd degree AV block) - if there is not a QRS after each P
wave that means....
no AV block - if the PR interval is normal, that means....
1st degree AV block - if the PR interval is consistently increased....
2nd degree AV block type I (Wenckebach) - if the PR interval progressively
increases, that means....
3rd degree AV block - if the PR interval is totally variable that means...
supraventricular origin - if the QRS is narrow, ( < .12 sec) that means
ventricular - if the QRS is > .12 second that means
torsade de pointes - if the QT is > .4 seconds this will lead to....
increases, decreases - HR (increases/decreases) with inspiration and
(increases/decreases) with expiration for sinus arrhythmia
sinus arrhythmia -
sinus arrhythmia - Rate: normal
regularity: irregular
P waves: normal
PR interval: .12-.20 seconds
QRS duration: .04-.12 seconds
sinus bradycardia - SA node is depolarizing slower than normal, impulse is
conducted normally
sinus bradycardia -
sinus bradycardia - Rate: <60 MP
regularity: regular
P waves: normal
PR interval: .12-.20 seconds
QRS duration: .04-.12 seconds
sinus tachycardia - SA node is depolarizing faster than normal, impulse is conducted
normally. not a primary arrhythmia, a response
sinus tachycardia - Rate: > 100 BPM
regularity: regular
P waves: normal
PR interval: .12-.20 seconds
QRS duration: .04-.12 seconds
