Arrhythmia Treatments Flashcards
Wandering atrial pacemaker
None
Sinus bradycardia:
- If atropine/glycopyrrolate increase heart rate (4)?
- If drugs are ineffective and animal is symptomatic?
- Terbutaline, isopropamide, isoproterenol, probanthine
- Pacemaker
Sinus arrest:
- If arrhythmia abolished by atropine (4)?
- If not?
- Terbutaline, isopropamide, isoproterenol, probanthine
- Pacemaker
Hyperkalemia (3)
- Sodium bicarbonate
- Glucose/insulin
- Calcium gluconate
First degree AV block
None
Second degree AV block type I (Wenkebach):
- No clinical signs?
- Clinical signs: respond to (2), controlled by (2), emergency (2)?
- Don’t respond to atropine?
- None
- Respond: atropine, glycopyrrolate/ Control: Beta agonists, anticholinergics/ Emergency: Isoproterenol, dopamine
- Pacemaker
Second degree AV block type II:
- No clinical signs?
- Clinical signs: respond to (2), controlled with (2), emergency (2)?
- Don’t respond to atropine?
- None
- Respond: atropine, glycopyrrolate/ Control: Beta agonists, anticholinergics/ Emergency: Isoproterenol, dopamine
- Pacemaker
Third degree AV block
Pacemaker
Sick Sinus Syndrome
Pacemaker
Sinus tachycardia
Treat underlying cause.
Supraventricular premature depolarizations (SDPs) & atrial tachycardia (treat underlying cause first):
- Emergency (2)?
- Maintenance (2)?
- Esmolol, diltiazam
- Sotalol, diltiazam
Ventricular premature depolarizations (VPDs/VPCs) - correct underlying dz, electrolyte/acid-base imbalance first:
- Emergency DOC (dogs)?
- Other emergency options (3)?
- When stable (6)?
- Lidocaine
- Procainamide, beta blockers, magnesium (if drugs don’t work)
- Sotalol, mexiletine, mexiletine & beta blocker, mexiletine & sotalol, beta blocker, procainamide
Ventricular tachycardia
Same as VPDs
Accelerated idioventricular rhythm/ idioventricular tachycardia
None/correct cause
Ventricular fibrillation (3)
Cardioversion (TOC), external countershock, defibrillation w/DC current