NURS 3525- Exam 3 Combined With
Verified Solutions
Normal sinus rhythm (NSR)
1. pulse present
2. regular rhythm
3. rate 60-100
4. P waves: upright, rounded, 1 for every QRS complex
5. PR interval: ≤ 0.20 seconds
6. QRS complex: ≤ 0.12 seconds
Sinus Bradycardia
1. pulse present
2. regular rhythm
3. rate: < 60 bpm
4. P waves: upright, rounded, 1 for each QRS complex
5. PR interval: ≤ 0.20 seconds
6. QRS complex: ≤ 0.12 seconds
Sinus tachycardia
1. pulse present
2. regular rhythm
3. rate: 101-180 bpm
4. P waves: upright, rounded, 1 for each QRS complex
5. PR interval: ≤ 0.20 seconds
,6. QRS complex: ≤ 0.12 seconds
paroxysmal supraventricular tachycardia (SVT)
1. pulse present
2. regular or slightly irregular rhythm
3. rate: 151-220 bpm
4. P waves: distorted shape or hidden in T-wave
5. PR interval: ≤0.20 seconds
6. QRS complex: ≤0.12 seconds
Premature Arterial contraction (PAC)
- ectopic beat
- not a rhythm (must identify underlying rhythm)
- rate: can be irregular
- P waves in PAC will appear differently than other P waves on strip
- PAC is followed by period of delay in electrical activity
Atrial flutter
ABNORMAL RHYTHMS
Atrial Flutter
,1. pulse present
2. regular
3. rate varied
4. P-waves: saw tooth/flutter waves
5. PR interval: not measurable
6. QRS complex: ≤ 0.12 seconds
Atrial fibrillation
1. pulse present
2. usually irregular
3. rate: varies
4. P waves: fibrillary waves
5. PR interval: not measurable
6. QRS compels: ≤ 0.12 seconds
junctional rhythm
1. pulse present
2. rhythm regular
3. rate: 40-60 bpm
4. P waves: inverted or hidden
5. PR interval: not measurable
6. QRS complex: ≤0.12 seconds
junctional tachycardia
rate: 101-180
accelerated junctional
, rate: 61-100
idioventricular rhythm
1. pulse is present
2. rhythm regular
3. rate 20-50 bpm (accelerated rate 51-100)
4. P waves absent
5. PR interval: N/A
6. QRS complex: wide >0.12 seconds
premature ventricular contraction (PVC)nectopic beat
is not a rhythm
no P wave
QRS > or = 0.12
followed by pause
unifocal vs multifocal
Ventricular tachycardia (VT)
runs of 3 or more PVCs!!
rate: 150-250
Wide QRS complex
TX: CPR, defibrillation
Ventricular fibrillation (VF)
ventricle is quivering
rate: unable to measure
QRS: unable to measure
Verified Solutions
Normal sinus rhythm (NSR)
1. pulse present
2. regular rhythm
3. rate 60-100
4. P waves: upright, rounded, 1 for every QRS complex
5. PR interval: ≤ 0.20 seconds
6. QRS complex: ≤ 0.12 seconds
Sinus Bradycardia
1. pulse present
2. regular rhythm
3. rate: < 60 bpm
4. P waves: upright, rounded, 1 for each QRS complex
5. PR interval: ≤ 0.20 seconds
6. QRS complex: ≤ 0.12 seconds
Sinus tachycardia
1. pulse present
2. regular rhythm
3. rate: 101-180 bpm
4. P waves: upright, rounded, 1 for each QRS complex
5. PR interval: ≤ 0.20 seconds
,6. QRS complex: ≤ 0.12 seconds
paroxysmal supraventricular tachycardia (SVT)
1. pulse present
2. regular or slightly irregular rhythm
3. rate: 151-220 bpm
4. P waves: distorted shape or hidden in T-wave
5. PR interval: ≤0.20 seconds
6. QRS complex: ≤0.12 seconds
Premature Arterial contraction (PAC)
- ectopic beat
- not a rhythm (must identify underlying rhythm)
- rate: can be irregular
- P waves in PAC will appear differently than other P waves on strip
- PAC is followed by period of delay in electrical activity
Atrial flutter
ABNORMAL RHYTHMS
Atrial Flutter
,1. pulse present
2. regular
3. rate varied
4. P-waves: saw tooth/flutter waves
5. PR interval: not measurable
6. QRS complex: ≤ 0.12 seconds
Atrial fibrillation
1. pulse present
2. usually irregular
3. rate: varies
4. P waves: fibrillary waves
5. PR interval: not measurable
6. QRS compels: ≤ 0.12 seconds
junctional rhythm
1. pulse present
2. rhythm regular
3. rate: 40-60 bpm
4. P waves: inverted or hidden
5. PR interval: not measurable
6. QRS complex: ≤0.12 seconds
junctional tachycardia
rate: 101-180
accelerated junctional
, rate: 61-100
idioventricular rhythm
1. pulse is present
2. rhythm regular
3. rate 20-50 bpm (accelerated rate 51-100)
4. P waves absent
5. PR interval: N/A
6. QRS complex: wide >0.12 seconds
premature ventricular contraction (PVC)nectopic beat
is not a rhythm
no P wave
QRS > or = 0.12
followed by pause
unifocal vs multifocal
Ventricular tachycardia (VT)
runs of 3 or more PVCs!!
rate: 150-250
Wide QRS complex
TX: CPR, defibrillation
Ventricular fibrillation (VF)
ventricle is quivering
rate: unable to measure
QRS: unable to measure
