Question | Answer |
sequence for interpretation of rhythm strips: | Rhythm-regular or irregular
Rate-6sec or300,150,100,75,60,50,43
P waves-if there is one for each QRS. are the normal in size and shape
PR interval- normal .12-.20
QRS complex-normal .04-.11 |
normal sinus rhythm NSR or RSR | Rhythm- regular
Rate-60-100bpm
P waves-normal and before each QRS
PR interval- normal .12-.20
QRS complex- normal .04-.11 |
sinus bradycardia | Rhythm- regular
Rate- 40-60bpm
P waves- normal and before each QRS
PR interval-normal .12-.20
QRS complex- normal .04-.11 |
sinus tachycardia | Rhythm- regular Rate-100-150bpm P waves-normal and before each QRS PR interval-normal .12-.20 QRS complex-normal .04-.11 |
sinus arrhythmia | Rhythm- irregular
Rate- 60-100pbm
P waves-normal and before each QRS
PR interval-normal .12-.20
QRS complex-normal .04-.11 |
premature atrial contractions - PAC | Rhythm- underlying rhythm regular
Rate-underlying rhythm
P waves-normal and before each QRS
PR interval-normal .12-.20
QRS complex- normal .04-.11 |
wondering atrial pacemaker - WAP | Rhythm-regular/slightly irregular
Rate-60-100can be slightly slower or faster
P waves- vary in size and shape
PR interval-varies
QRS complex-normal .04-.11 |
atrial flutter - Aflutter | Rhythm-regular but can be irregular
Rate-can occur at any rate
P waves-NONE saw toothed flutter waves instead
PR interval-NONE
QRS complex-normal .04-.11 |
paroxysmal atrial tachycardia - PAT or SVT | Rhythm- regular
Rate-greater than 150bpm
P waves-normal and hidden before each QRS
PR interval-unable to measure
QRS complex-normal .04-.11 |
atrial fibrillation - Afib | Rhythm-irregularly irregular
Rate-can occur at any rate
P waves-NONE small f waves
PR interval-none
QRS complex-normal .04-.11 |
premature ventricular contractions-PVC | Rhythm-underlying rhythm regular
Rate-underlying rhythm
P waves-NO Pwaves
PR interval-
QRS complex-WIDE .12 higher |
ventricular tachycardia - Vtach | Rhythm-regular
Rate-100-250bpm
P waves-NONE
PR interval-NONE
QRS complex-wide and bizarre |
ventricular fibrillation - Vfib | Rhythm-chaotic
Rate-to fast to count
P waves-NONE
PR interval-NONE
QRS complex-chaotic |
asystole | Rhythm-NONE
Rate-NONE
P waves-NONE
PR interval-NONE
QRS complex-NONE |
bundle branch block | check lead V1 for a QRS greater than .12 |
left bundle branch block | if the QRS is mostly negative (QSwaves) |
right bundle branch block | if the QRS is mostly positive (R wave) |
premature junctional rhythm - PJC | Rhythm-underlying rhythm
Rate-underlying rate
P waves-negative absent (in QRS) or after QRS in twave
PR interval-short if present
QRS complex-normal .04-.11 |
junctional rhythm | Rhythm-regular but can be slightly irregular
Rate-40-60bpm
P waves-
PR interval-
QRS complex- |
accelerated junctional rhythm | Rhythm-regular but can be slightly irregular
Rate-60-100bpm
P waves-negative,absent (in QRS)or after QRS in Twave
PR interval-short if present
QRS complex-normal .04-.11 |
junctional tachycardia | Rhythm-regular but can be slightly irregular
Rate-greater than 100bpm
P waves-negative absent (in QRS) or after in Twave
PR interval-short if present
QRS complex-normal .04-.11 |
1st degree AV block
atrioventricular blocks | Rhythm-regular
Rate-can occur at any rate
P waves-normal
PR interval-prolonged grater than .20
QRS complex-normal .04-.11 |
type 1-2nd degree AV block
atrioventricular blocks | Mobitz 1 Weneckebach
Rhythm-regular except when drop occurs
Rate-can occur at any rate
P waves-more Pwaves then QRS
PR interval-longer longer drop
QRS complex-normal .04-.11 |
type 2-2nd degree AV block
atrioventricular blocks | Mobitz 2
Rhythm-usually regular
Rate-can occur at any rate
P waves-more Pwaves than QRS
PR interval-consistent
QRS complex-normal .04-.11 |
3rd degree AV block
atrioventricular blocks | Rhythm-regular
Rate-very slow
P waves-more Pwaves than QRS
PR interval-inconsistent
QRS complex-normal .04-.11 |