EKG Rhythm Strip Quiz 80
Identify the following rhythms.
a. Normal sinus rhythm
b. Sinus arrhythmia
c. 1st degree block
d. 2nd degree AV block type I
2.
a. Normal sinus rhythm
b. Complete heart block
c. Accelerated idioventricular rhythm
d. AV paced
3.
a. Normal sinus rhythm with unifocal PVCs
b. Normal sinus rhythm with multifocal PVCs
c. Normal sinus rhythm with PACs
d. Normal sinus rhythm with PJCs
4.
a. Sinus arrhythmia with unifocal PVCs
b. Atrial fibrillation with unifocal PVCs
c. Accelerated idioventricular rhythm with unifocal PVCs
d. Normal sinus rhythm with unifocal PVCs
6.
a. Idioventricular rhythm
b. Complete heart block
c. Normal sinus rhythm
d. Atrial fibrillation
7.
a. Ventricular fibrillation
b. Ventricular tachycardia
c. Accelerated idioventricular rhythm
d. Torsades de pointe
8.
Reviewed 6/4/13, 3/9/16
1.
a. Normal sinus rhythm
b. Sinus arrhythmia
c. 1st degree block
d. 2nd degree AV block type I
2.
a. Normal sinus rhythm
b. Complete heart block
c. Accelerated idioventricular rhythm
d. AV paced
3.
a. Normal sinus rhythm with unifocal PVCs
b. Normal sinus rhythm with multifocal PVCs
c. Normal sinus rhythm with PACs
d. Normal sinus rhythm with PJCs
4.
a. Sinus tachycardia
b. Supraventricular tachycardia
c. Junctional tachycardia
d. Ventricular tachycardia
5.
a. Sinus arrhythmia with unifocal PVCs
b. Atrial fibrillation with unifocal PVCs
c. Accelerated idioventricular rhythm with unifocal PVCs
d. Normal sinus rhythm with unifocal PVCs
6.
a. Idioventricular rhythm
b. Complete heart block
c. Normal sinus rhythm
d. Atrial fibrillation
7.
a. Ventricular fibrillation
b. Ventricular tachycardia
c. Accelerated idioventricular rhythm
d. Torsades de pointe
8.
a. Accelerated idioventricular rhythm
b. Complete heart block
c. Ventricular paced
d. Ventricular tachycardia
b. Complete heart block
c. Ventricular paced
d. Ventricular tachycardia
9.
a. Supraventricular tachycardia converting to normal sinus rhythm
b. Ventricular tachycardia converting to normal sinus rhythm
c. Normal sinus rhythm converting to sinus bradycardia
d Ventricular fibrillation converting to aystole
10.
a. Monomorphic ventricular tachycardia
b. Polymorphic ventricular tachycardia
c. Torsades de pointe
d. Fine ventricular fibrillation
Answers
1. d. 2nd degree AV block type I
2. d. AV paced
3. a. Normal sinus rhythm with unifocal PVCs (Trigeminy)
4. a. Sinus tachycardia
5. b. Atrial fibrillation with unifocal PVCs
6. c. Normal sinus rhythm
7. d. Torsades de pointe
8. c. Ventricular paced
9. a. Supraventricular tachycardia converting to normal sinus rhythm
10. b. Polymorphic ventricular tachycardia
If you thought this was torsades de pointe you were close to being right. Torsades is a form of polymorphic ventricular tachycardia that is characterized by a waveform that begins small and increases in size or amplitude then decreases in size. The axis of the torsades QRS complexes also change. The axis of this strip does not really change. I will put the two strips together for you to compare them. however, the treatment for both arrhythmias would include defibrillation (if pulseless) and magnesium. If the patient has a pulse then give antiarrhythmics such as Lidocaine, Procainamide, or Amiodarone. For torsades also look for underlying causes of the prolonged baseline QT interval such as a low serum magnesium level or other electrolytes and medications known to increase the QT interval. If the patient is unstable, remember to give unsynchronized shocks rather than synchronized shocks to convert the rhythm.
If you thought this was torsades de pointe you were close to being right. Torsades is a form of polymorphic ventricular tachycardia that is characterized by a waveform that begins small and increases in size or amplitude then decreases in size. The axis of the torsades QRS complexes also change. The axis of this strip does not really change. I will put the two strips together for you to compare them. however, the treatment for both arrhythmias would include defibrillation (if pulseless) and magnesium. If the patient has a pulse then give antiarrhythmics such as Lidocaine, Procainamide, or Amiodarone. For torsades also look for underlying causes of the prolonged baseline QT interval such as a low serum magnesium level or other electrolytes and medications known to increase the QT interval. If the patient is unstable, remember to give unsynchronized shocks rather than synchronized shocks to convert the rhythm.
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| Polymorphic ventricular tachycardia |
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| Torsades de pointe |
Reviewed 6/4/13, 3/9/16
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