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20 Cards in this Set
- Front
- Back
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In a 6-second ECG strip there are 7 QRS complexes. What is the rate?
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70bpm
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In a 10-second ECG strip there are 12 QRS complexes. What is the rate?
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72bpm
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Describe the types of PVC's, including unifocal, multifocal, bigeminy, trigeminy, couplets, and ventricular tachycardia.
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Unifocal PVC's: Same origins, look the same
Multifocal PVC's: Different origins Bigeminy: PVC in every other beat Trigeminy: PVC in every third beat Couplet: Two PVC'a in a row V Tach: Three or more PVC's in a row |
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What cardiac activity does the QRS complex represent?
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Contraction of the ventricles
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What are the normal ranges for the PR Interval?
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0.12-0.20 seconds
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What ECG wave is representative of the ventricular repolarization?
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T wave
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What cardiac activity does the P wave represent?
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Contraction of the atria
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Identify the ECG rhythm
Rate: Depends on underlying rhythm Rhythm: Irregular QRS: >0.12 sec. Wide and bizarre. P Waves: Usually absent PR Int: None Description: QRS complexes are wide and begin early. |
Premature Ventricular Contraction (PVC)
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Identify the ECG rhythm
Rate: Atrial rate>400 Rhythm: Atrial and ventricular rates are irregularQRS: Usually <0.10 sec P Waves: No identifiable P waves PR Int: None Description: Unorganized atrial activity |
Atrial Fibrillation
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What are the normal ranges for the QRS complex?
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0.04-0.10 seconds
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Identify the ECG rhythm
Rate: Atrial rate> vent rate, both in normal ranges Rhythm: Atrial regular, ventricular irregular QRS: >0.10sec, but is dropped periodically P Waves: Normal in size and configuration PR Int: Constant for each QRS Description: Missed QRS without warning |
Second Degree AV Block Type II (Non-Wenckbach, MobitzII)
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Identify the ECG rhythm
Rate: Cannot be determined Rhythm: Ventricular rate indiscernible QRS: None P Waves: Not discernible PR Int: Not measurable Description: No activity in ventricles |
Ventricular Standstill (Asystole)
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Identify the ECG rhythm
Rate: Cannot be determined Rhythm: Rapid and chaotic QRS: Not discernible P Waves: Not discernible PR Int: Not measurable Description: Heart is quivering rather than contracting |
Ventricular Fibrillation (V-Fib)
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Identify the ECG rhythm
Rate: Usually 60-90 bpm, but may vary Rhythm: Irregular QRS: <0.10 sec P Waves: Uniform and upright PR Int: 0.12-0.20 sec Description: Normal rate and intervals. Irregular rhythm |
Sinus Arrhythmia
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Identify the ECG rhythm
Rate: 60-90 bpm Rhythm: Regular QRS: <0.10 sec P Waves: Uniform and upright PR Int: 0.12-0.20 sec Description: Normal rhythm, rate, and intervals |
Normal Sinus Rhythm (NSR)
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Identify the ECG rhythm
Rate: Atrial rate>vent rate, both in normal ranges Rhythm: Atrial regular, ventricular irregular QRS: <0.10 sec, but is dropped periodically P Waves: Normal in size and configuration PR Int: Lengthens w/ each cycle until QRS drops Description: Missed QRS after increasing PR intervals |
Second Degree AV Block Type I (Wenckebach, Mobitz I)
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Identify the ECG rhythm
Rate: > 90 bpm Rhythm: Regular QRS: <0.10 sec P Waves: Uniform and upright PR Int: 0.12-0.20 sec Description: Normal rhythm and intervals. Increased rate. |
Sinus Tachycardia
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Identify the ECG rhythm
Rate: <40 bpm Rhythm: Regular QRS: <0.10 sec P Waves: Uniform and upright PR Int: 0.12-0.20 sec Description: Normal rhythm and intervals. Decreased rate. |
Sinus Bradycardia
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Identify the ECG rhythm
Rate: Normal Rhythm: Normal QRS: <0.10 sec P Waves: Normal in size and configuration PR Int: Prolonged (>0.20 sec), but constant Description: Normal rate&rhythm. Long PR interval. |
First Degree AV Block
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Identify the ECG rhythm
Rate: Atrial rate> vent rate, both in normal ranges Rhythm: Atrial regular, ventricular regular QRS: May be narrow or wide P Waves: Normal in size and configuration PR Int: None Description: No association between P waves and QRS |
Third Degree (Complete) AV Block
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