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| 1 | Ventricular dysrhythmias originate in the: |
 | A) | AV junction |
| B) | SA node |
| C) | atria |
| D) | ventricles |
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| 2 | Features common to most ventricular dysrhythmias are: |
| A) | bizarre-looking, wide QRS complexes |
| B) | P waves that are not all followed by a QRS complex |
| C) | prolonged PR intervals |
| D) | T waves in the opposite direction of the S wave |
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| 3 | All of the following dysrhythmias originate from the ventricles EXCEPT: |
| A) | idioventricular rhythm |
| B) | ventricular tachycardia |
| C) | premature ventricular complexes |
| D) | 2nd- degree AV block |
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| 4 | Premature ventricular complexes (PVCs): |
| A) | are followed by a compensatory pause |
| B) | do not interrupt the regularity of the rhythm |
| C) | are preceded by an inverted P' wave |
| D) | have a longer than P'R interval |
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| 5 | Premature ventricular complexes (PVCs) that look different from one another are referred to as: |
| A) | bigeminal |
| B) | multiform |
| C) | interpolated |
| D) | uniform |
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| 6 | Idioventricular rhythm typically has a heart rate of _____ beats per minute. |
| A) | 40 to 60 |
| B) | 20 to 40 |
| C) | 60 to 100 |
| D) | 100 to 160 |
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| 7 | With idioventricular rhythm: |
| A) | the QRS complexes are wide and bizarre-looking |
| B) | the P' waves continually change in appearance |
| C) | the P'R intervals are constant in duration |
| D) | there is a patterned irregular rhythm |
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| 8 | Accelerated idioventricular rhythm typically has a heart rate of _____ beats per minute. |
| A) | 40 to 60 |
| B) | 20 to 40 |
| C) | 40 to 100 |
| D) | 100 to 160 |
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| 9 | Ventricular tachycardia has a heart rate of _____ beats per minute. |
| A) | 100 to 180 |
| B) | 150 to 250 |
| C) | 100 to 250 |
| D) | 100 to 160 |
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| 10 | With ventricular tachycardia: |
| A) | there is a regular rhythm |
| B) | the QRS complexes are narrow |
| C) | the T wave takes the same direction as the R wave |
| D) | P' waves are easily identifiable |
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| 11 | Ventricular tachycardia is said to be present when there are ___ or more PVCs in a row. |
| A) | 3 |
| B) | 5 |
| C) | 10 |
| D) | 15 |
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| 12 | When ventricular tachycardia varies considerably in appearance it is referred to as: |
| A) | monomorphic |
| B) | sustained |
| C) | nonperfusing |
| D) | polymorphic |
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| 13 | Ventricular tachycardia that is characterized by QRS complexes that alternate (usually gradually) between upright deflections and downward deflections is called: |
| A) | aberrancy |
| B) | torsades de pointes |
| C) | paroxysmal |
| D) | Wolff-Parkinson-White (WPW) syndrome |
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| 14 | With ventricular fibrillation: |
| A) | there is chaotic firing of a single site in the ventricles |
| B) | the QRS complexes are wide and bizarre-looking but are all similar in appearance |
| C) | death occurs if the patient is not promptly treated |
| D) | it looks like a flat line |
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| 15 | You have attached an ECG monitor to your 63-year-old patient. You see a regular rhythm with heart rate of 140 beats per minute and wide, bizarre-looking QRS complexes. The P waves are absent. This dysrhythmia is: |
| A) | idioventricular rhythm |
| B) | ventricular tachycardia |
| C) | sinus rhythm with premature ventricular complexes |
| D) | accelerated idioventricular rhythm |
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| 16 | You are assessing the ECG of a patient who is passed out at work. You see a regular rhythm with a heart rate of 38 beats per minute and wide, bizarre-looking QRS complexes. The T waves are the opposite direction of the R waves. You are unable to identify the presence of P waves. This dysrhythmia is: |
| A) | idioventricular rhythm |
| B) | ventricular tachycardia |
| C) | sinus rhythm with premature ventricular complexes |
| D) | accelerated idioventricular rhythm |
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| 17 | You are assessing the ECG of a 58 year-old male who became unconscious and pulseless after being admitted to the hospital for chest pain. You see a wavy line, totally chaotic, without any logic. There are no discernible P waves, QRS complexes, or PR intervals. This dysrhythmia is: |
| A) | idioventricular rhythm |
| B) | ventricular tachycardia |
| C) | ventricular fibrillation |
| D) | asystole |
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| 18 | You are assessing the ECG of a patient who is complaining of chest palpitations. You see a rhythm that has patterned irregularity with an early beat that is seen every other beat. The heart rate is 60 beats per minute. With the underlying rhythm each upright, normal P wave is followed by a normal QRS complex. The PR intervals are 0.12 seconds in duration. The early beats have a wide, bizarre-looking QRS complex that is are not preceded by a P wave. This dysrhythmia is: |
| A) | idioventricular rhythm |
| B) | ventricular tachycardia |
| C) | sinus rhythm with bigeminal PVCs |
| D) | accelerated idioventricular rhythm |
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| 19 | Triggered activity is the most common cause of ventricular dysrhythmias. |
| A) | True |
| B) | False |
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| 20 | Ventricular dysrhythmias are typically benign. |
| A) | True |
| B) | False |
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| 21 | Ventricular tachycardia is always clinically significant. |
| A) | True |
| B) | False |
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| 22 | Unless the patient is in cardiac arrest, torsades often responds to infusion of procainamide. |
| A) | True |
| B) | False |
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| 23 | Fast dysrhythmias seldom cause decreased cardiac output. |
| A) | True |
| B) | False |
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| 24 | If the PVC lands on or near the T wave of the preceding beat it is called an R-on-T PVC. |
| A) | True |
| B) | False |
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| 25 | Asystole is a chaotic appearing dysrhythmia that is absent of any effective cardiac contraction. |
| A) | True |
| B) | False |