WorksheetsCardiac Rhythm Review
Total questions: 20
Worksheet time: 10mins
First degree heart block characteristic
Short PR-interval (<120 ms)
Normal PR-interval (120-200 ms)
Long PR-interval (>200 ms)
Variable PR-interval
Step #1: Rate=
Most dysrhythmias have rate criteria.
All dysrhythmias are asymptomatic.
Dysrhythmias are always life-threatening.
Dysrhythmias can only occur in older adults.
QRS morphology
Normal range is 60-120 ms.
Normal range is 40-60 ms.
Normal range is 120-150 ms.
Normal range is 150-180 ms.
Characterized by a saw-toothed or picket fence pattern with regular F-waves.
Atrial flutter pattern
Ventricular tachycardia
Atrial fibrillation
Normal sinus rhythm
Sinus bradycardia =
A heart rate of less than 60 beats per minute.
A heart rate of 60 to 100 beats per minute.
A heart rate of more than 100 beats per minute.
An irregular heartbeat pattern.
What is the inherent rate of the Purkinje System in idioventricular rhythm?
60-80 bpm
40-60 bpm
20-40 bpm
80-100 bpm
Rate categories for junctional rhythms, based on HR
Junctional escape rhythm: 40-60 bpm
Accelerated junctional rhythm: 60-100 bpm
Junctional tachycardia: 101-150 bpm
Sinus bradycardia: 30-50 bpm
What is the rate and characteristic of agonal rhythm?
Agonal rhythm is very wide with a rate of less than 20 bpm.
Agonal rhythm is narrow with a rate of 60-100 bpm.
Agonal rhythm is irregular with a rate of 40-60 bpm.
Agonal rhythm is fast with a rate of more than 100 bpm.
Types of life-threatening dysrhythmias
Ventricular fibrillation
Atrial fibrillation
Ventricular tachycardia
Complete Heart Block
This describes a characteristic of junctional dysrhythmias.
Inverted P-wave before or after the QRS complex or no P-wave because it’s “buried” in the QRS.
Presence of tall, peaked T-waves in the ECG.
Wide QRS complexes with a rate of 120-200 bpm.
Regular rhythm with a P-wave preceding each QRS complex.
PR-interval
Normal range is 100-150 ms.
Normal range is 120-200 ms.
Normal range is 200-300 ms.
Normal range is 80-120 ms.
Sinus tachycardia is...
Defined by a heart rate between 60 and 100 beats per minute.
Defined by a heart rate between 101 and 150 beats per minute.
Defined by a heart rate above 150 beats per minute.
Defined by a heart rate below 60 beats per minute.
Heart with heartbeat line icon
Symbol representing heart health and monitoring.
A representation of a heart attack.
An icon for a fitness app.
A logo for a medical conference.
What is the rate for ventricular tachycardia (V. tach.)?
Less than 60 bpm.
Between 60 and 100 bpm.
Greater than 100 bpm.
Between 100 and 120 bpm.
R-R is too close to see any P-waves, F-waves, f-waves, or inverted/missing P-wave.
Difficulty in identifying specific waveforms in SVT.
Clear identification of P-waves and F-waves.
Normal R-R interval with visible waveforms.
Presence of regular sinus rhythm.
Rate criteria for atrial fibrillation
Rapid ventricular response (RVR): > 100 bpm
Controlled ventricular response (CVR): 60-100 bpm
Slow ventricular response (SVR): < 60 bpm
Normal ventricular response (NVR): 50-70 bpm
A rapid heart rhythm of 150-250 bpm with narrow QRS complexes.
Atrial Fibrillation
Supraventricular Tachycardia (SVT)
Ventricular Tachycardia
Bradycardia
What is asystole and how is it confirmed?
Asystole is a flatline, confirmed by checking in 2 leads to rule out fine ventricular fibrillation.
Asystole is a rapid heartbeat, confirmed by checking blood pressure.
Asystole is a condition where the heart beats irregularly, confirmed by an ECG.
Asystole is a heart condition that requires immediate surgery.
Treatment focus for atrial dysrhythmias is...
Bringing the rate to < 100 bpm and includes anticoagulation.
Increasing the heart rate to > 100 bpm and avoiding anticoagulation.
Administering beta-blockers only without monitoring heart rate.
Focusing solely on lifestyle changes without medication.
What characterizes ventricular fibrillation (V. fib.)?
Squiggly baseline with no QRS complexes.
Regular rhythm with distinct QRS complexes.
Slow heart rate with wide QRS complexes.
Rapid heart rate with normal sinus rhythm.
