BradyCardia DDx

Causes of bradycardia

1. Medications

• • • • Beta blockers

      • Calcium channel blockers

      • Digoxin (Salvador Dali slurred downsloping ST-segment)

      • Opiates

      • Clonidine

      • Cholinergic's (look for associated toxidrome)

2. Vagal tone (Including Ischemia)

3. AV Blocks

4. Damage to conduction system (CAD, Endocarditis, Myocarditis, Infiltrative disease)

5. Hypothermia

6. Metabolic (acidosis, hyperkalemia, hypermagnesemia, hyperkalemia etc.)

7. Elevated ICP

Think of hyperkalemia in patients with undifferentiated bradycardia, ACLS may not work!