NSG 430 TOPIC 5
1. 1st degree heart block: HR is normal and rhythm is regularThe P wave is normal
the PR interval is prolonged (greater than 0.20 second)
the QRS complex usually has a normal shape and duration.
2. usually none because it is usually not serious
monitor for more serious changes in heart rhythm: treatment for 1st degreeheart block
3. 3rd Degree Heart Block (Complete Heart Block): Atrial: Regular but mayappear irregular
due to P waves hidden in QRS complexes
Ventricular: 20-60 beats/min and regular
Normal P-wave length but no connection with QRS complexInconsistent PR interval
Normal or widened QRS, no relationship with P waves
4. Digoxin, calcium channel blockers, beta blockers: Drugs associated withcomplete heart
block
5. Usually results in decreased CO, ischemia, HF, and shock, syncope: Whyis heart block
dangerous? (hint: what can it cause?)
6. pacemaker- TCP to TVP to Permanent
Drugs to increase heart rate if needed while awaiting pacing-dopamine (In-tropin), and
epinephrine: Treatment for complete heart block
7. Atropine, because the connection is blocked: Which drug is NOT effective forcomplete
heart block and why?
8. brady = pacemaker: block =
9. Premature Ventricular Contractions (PVCs)Ventricular tachycardia
Ventricular fibrillation: Ventricular dysrhythmias
10. premature ventricular dysrhythmias: A QRS complex that is wide and distort-ed in shape,
lasting more than 0.12 second.
11. ventricular bigeminy: When every other beat is a PVC, the rhythm is called...
12. ventricular trigeminy: When every third beat is a PVC, it is called...
13. couplet: Two consecutive PVCs are called a...
14. a run of v tach: a run of three or more PVCs is called...
15. True, they may lead to HF and angina: True or false: PVCs are generallytolerated by
people without diseased hearts.
16. caffeine, alcohol, nicotine, aminophylline, epinephrine, isoproterenol, anddigoxin
electrolyte imbalances, hypoxia, fever, exercise, and emotional stress MI, mitral valve
, prolapse, HF, cardiomyopathy, and CAD.: causes of PVCs
17. ²-blockers, lidocaine, or amiodarone: Medications used to treat PVCs
18. monomorphic ventricular tachycardia: presents with wide QRS complexes ofa common
shape.
19. polymorphic ventricular tachycardia - aka torsades: presents with wide QRScomplexes of
varyaing shapes
causes by firing from multiple foci
1. 1st degree heart block: HR is normal and rhythm is regularThe P wave is normal
the PR interval is prolonged (greater than 0.20 second)
the QRS complex usually has a normal shape and duration.
2. usually none because it is usually not serious
monitor for more serious changes in heart rhythm: treatment for 1st degreeheart block
3. 3rd Degree Heart Block (Complete Heart Block): Atrial: Regular but mayappear irregular
due to P waves hidden in QRS complexes
Ventricular: 20-60 beats/min and regular
Normal P-wave length but no connection with QRS complexInconsistent PR interval
Normal or widened QRS, no relationship with P waves
4. Digoxin, calcium channel blockers, beta blockers: Drugs associated withcomplete heart
block
5. Usually results in decreased CO, ischemia, HF, and shock, syncope: Whyis heart block
dangerous? (hint: what can it cause?)
6. pacemaker- TCP to TVP to Permanent
Drugs to increase heart rate if needed while awaiting pacing-dopamine (In-tropin), and
epinephrine: Treatment for complete heart block
7. Atropine, because the connection is blocked: Which drug is NOT effective forcomplete
heart block and why?
8. brady = pacemaker: block =
9. Premature Ventricular Contractions (PVCs)Ventricular tachycardia
Ventricular fibrillation: Ventricular dysrhythmias
10. premature ventricular dysrhythmias: A QRS complex that is wide and distort-ed in shape,
lasting more than 0.12 second.
11. ventricular bigeminy: When every other beat is a PVC, the rhythm is called...
12. ventricular trigeminy: When every third beat is a PVC, it is called...
13. couplet: Two consecutive PVCs are called a...
14. a run of v tach: a run of three or more PVCs is called...
15. True, they may lead to HF and angina: True or false: PVCs are generallytolerated by
people without diseased hearts.
16. caffeine, alcohol, nicotine, aminophylline, epinephrine, isoproterenol, anddigoxin
electrolyte imbalances, hypoxia, fever, exercise, and emotional stress MI, mitral valve
, prolapse, HF, cardiomyopathy, and CAD.: causes of PVCs
17. ²-blockers, lidocaine, or amiodarone: Medications used to treat PVCs
18. monomorphic ventricular tachycardia: presents with wide QRS complexes ofa common
shape.
19. polymorphic ventricular tachycardia - aka torsades: presents with wide QRScomplexes of
varyaing shapes
causes by firing from multiple foci
