Nursing in Complex and Critical Situations- ECG Rhythms (Exam 2)
Nursing in Complex and Critical Situations- ECG Rhythms (Exam 2)
Study online at https://quizlet.com/_h2gjtm
1. ECG Rhythms
2. Atrial Arrhythmias
3. Describe Atrial P waves P waves from the atria differ in shape form the normal sinus P waves
vs Sinus P waves?
4. Causes of Atrial Arrhyth- 1. Altered automaticity- ectopic pacemaker usurps the SA node
mias? 2. Triggered activity- abnormal repolarization
3. Reentry- circular movement of an impulse via an accessory pathway
5. Underlying conditions of - Myocardial ischemia/injury
Atrial Arrhythmias? - Hypoxia
- Electrolyte imbalance
- Digoxin Toxicity
6. What is Premature Atrial - A PAC is an early beat originating in an ectopic site in the atria and it
Contraction (PAC)? is followed by a pause
- The premature beat occurs in addition to a basic underlying rhythm
7. Describe the characteris- Rhythm
tics of Premature Atrial - Basic rhythm regular;
Contraction (PAC)? irregular with PAC
Rate
, Nursing in Complex and Critical Situations- ECG Rhythms (Exam 2)
Nursing in Complex and Critical Situations- ECG Rhythms (Exam 2)
Study online at https://quizlet.com/_h2gjtm
- that of the underlying rhythm
P Waves
- Premature and abnormal
PR Interval
- usually normal; not measurable if hidden in T wave
QRS
- Premature; normal duration
8. Causes of Premature Occur with normal hearts
Atrial Contraction (PAC)? - Emotional stress
- Caffeine
- Tobacco
- ETOH
9. Tx of Premature Atrial - Infrequent PACs: No Tx
Contraction (PAC)? - Frequent PACs: Tx underlying cause (O2, e-lytes, relaxation)
10. What is Paroxys- Rhythm originates above the ventricles
mal Atrial Tachycar- - Originates in an ectopic pacemaker site in the atria at a rate of 140-250
dia (PAT)/Supraventricu- beats/min
lar Tachycardia (SVT)? - P wave is hidden in T wave
11. What effect does Rapid HR decreases diastolic filling time = Decrease SV/CO
Supraventricular Tachy- - Decrease BP
cardia (SVT) have on he- - Decrease LOC
modynamics? - Angina
- SOB
12. Causes of Supraventricu- Lifestyle/choices
lar Tachycardia (SVT)? - Ingestion of substances such as caffeine, tobacco, alcohol, anxiety
Drugs
- Albuterol, Digitalis Toxicity, Cocaine, Sympathomimetics
Nursing in Complex and Critical Situations- ECG Rhythms (Exam 2)
Study online at https://quizlet.com/_h2gjtm
1. ECG Rhythms
2. Atrial Arrhythmias
3. Describe Atrial P waves P waves from the atria differ in shape form the normal sinus P waves
vs Sinus P waves?
4. Causes of Atrial Arrhyth- 1. Altered automaticity- ectopic pacemaker usurps the SA node
mias? 2. Triggered activity- abnormal repolarization
3. Reentry- circular movement of an impulse via an accessory pathway
5. Underlying conditions of - Myocardial ischemia/injury
Atrial Arrhythmias? - Hypoxia
- Electrolyte imbalance
- Digoxin Toxicity
6. What is Premature Atrial - A PAC is an early beat originating in an ectopic site in the atria and it
Contraction (PAC)? is followed by a pause
- The premature beat occurs in addition to a basic underlying rhythm
7. Describe the characteris- Rhythm
tics of Premature Atrial - Basic rhythm regular;
Contraction (PAC)? irregular with PAC
Rate
, Nursing in Complex and Critical Situations- ECG Rhythms (Exam 2)
Nursing in Complex and Critical Situations- ECG Rhythms (Exam 2)
Study online at https://quizlet.com/_h2gjtm
- that of the underlying rhythm
P Waves
- Premature and abnormal
PR Interval
- usually normal; not measurable if hidden in T wave
QRS
- Premature; normal duration
8. Causes of Premature Occur with normal hearts
Atrial Contraction (PAC)? - Emotional stress
- Caffeine
- Tobacco
- ETOH
9. Tx of Premature Atrial - Infrequent PACs: No Tx
Contraction (PAC)? - Frequent PACs: Tx underlying cause (O2, e-lytes, relaxation)
10. What is Paroxys- Rhythm originates above the ventricles
mal Atrial Tachycar- - Originates in an ectopic pacemaker site in the atria at a rate of 140-250
dia (PAT)/Supraventricu- beats/min
lar Tachycardia (SVT)? - P wave is hidden in T wave
11. What effect does Rapid HR decreases diastolic filling time = Decrease SV/CO
Supraventricular Tachy- - Decrease BP
cardia (SVT) have on he- - Decrease LOC
modynamics? - Angina
- SOB
12. Causes of Supraventricu- Lifestyle/choices
lar Tachycardia (SVT)? - Ingestion of substances such as caffeine, tobacco, alcohol, anxiety
Drugs
- Albuterol, Digitalis Toxicity, Cocaine, Sympathomimetics
