NURB 4220 Cardiac Rhythms Exam
Latest Update
Characteristics of sinus bradycardia - Answer - rhythm is regular
- P: QRS ratio is 1:1
-PRI is less than or equal to 0.2 sec.
-QRS complex is less than or equal to 0.12 sec.
- rate < 60 BPM
possible causes of sinus bradycardia - Answer - athlete
- teenager
- sleeping/ sedation
- vagal/parasympathetic effect
- Heart Dx
- drug effects
When is sinus bradycardia a problem? - Answer when it become symptomatic or EKG
changes
What do you want to check with sinus bradycardia? - Answer - electrolytes
- thyroid and troponin levels
what is the treatment for sinus bradycardia? - Answer - atropine and or pacemaker
Characteristics of sinus tachycardia - Answer - rhythm is regular
- PRI is less than or equal to 0.2 sec.
- QRS complex is less than or equal to 0.12 second
- PRI to QRS ratio is 1:1
- rate is 100- 150 BPM
possible causes of sinus tachycardia? - Answer - caffeine
- exercise
, - dehydration
- fever
- shock
- CV compromise
- hypoxia
Treatment for sinus tachycardia? - Answer - rest, fluids, blood
- Calcium Channel/ Beta Blockers
- then ablation
What is sick sinus syndrome? - Answer - irregular sinus generations w/ breaks in
between
- tachy - brady syndrome
What is the root cause of sick sinus syndrome? - Answer - dysfunctional SA node
where is Sick sinus syndrome commonly seen? - Answer - aging
- scarring from age degeneration
- after cardiac surgery
- older people
Treatment for Sick Sinus syndrome? - Answer - pacer
What is long QT syndrome? - Answer - inherited Heart condition causing prolonged QT
interval
- the heart takes longer to respond to repolarization in between beats
When is Long QT syndrome clinically significant? - Answer - when QT interval is longer
than 510 MS (0.51 sec.)
possible causes of Long QT syndrome? - Answer - drug effects
- physical/ emotional stress
- startle response
What can Long QT interval result in? - Answer - torsade's de pointes or Ventricular
Fibrillation
Treatment for Long QT syndrome? - Answer - Mexatil
- Pacer
Latest Update
Characteristics of sinus bradycardia - Answer - rhythm is regular
- P: QRS ratio is 1:1
-PRI is less than or equal to 0.2 sec.
-QRS complex is less than or equal to 0.12 sec.
- rate < 60 BPM
possible causes of sinus bradycardia - Answer - athlete
- teenager
- sleeping/ sedation
- vagal/parasympathetic effect
- Heart Dx
- drug effects
When is sinus bradycardia a problem? - Answer when it become symptomatic or EKG
changes
What do you want to check with sinus bradycardia? - Answer - electrolytes
- thyroid and troponin levels
what is the treatment for sinus bradycardia? - Answer - atropine and or pacemaker
Characteristics of sinus tachycardia - Answer - rhythm is regular
- PRI is less than or equal to 0.2 sec.
- QRS complex is less than or equal to 0.12 second
- PRI to QRS ratio is 1:1
- rate is 100- 150 BPM
possible causes of sinus tachycardia? - Answer - caffeine
- exercise
, - dehydration
- fever
- shock
- CV compromise
- hypoxia
Treatment for sinus tachycardia? - Answer - rest, fluids, blood
- Calcium Channel/ Beta Blockers
- then ablation
What is sick sinus syndrome? - Answer - irregular sinus generations w/ breaks in
between
- tachy - brady syndrome
What is the root cause of sick sinus syndrome? - Answer - dysfunctional SA node
where is Sick sinus syndrome commonly seen? - Answer - aging
- scarring from age degeneration
- after cardiac surgery
- older people
Treatment for Sick Sinus syndrome? - Answer - pacer
What is long QT syndrome? - Answer - inherited Heart condition causing prolonged QT
interval
- the heart takes longer to respond to repolarization in between beats
When is Long QT syndrome clinically significant? - Answer - when QT interval is longer
than 510 MS (0.51 sec.)
possible causes of Long QT syndrome? - Answer - drug effects
- physical/ emotional stress
- startle response
What can Long QT interval result in? - Answer - torsade's de pointes or Ventricular
Fibrillation
Treatment for Long QT syndrome? - Answer - Mexatil
- Pacer
