Bradycardia - Differential Diagnosis 
 • Cardiac disease: Myocardial ischemia / infarction, Myocarditis, Congenital disorders, Cardiomyopathies, His-Purkinje fibre degeneration
 • Hypoxia
 • Electrolyte disturbance (e.g. hyperkalemia)
 • Medications, poisonings and toxic exposures (e.g. digoxin, beta blockers, calcium channel blockers, amiodarone, clonidine, organophosphates)
 • Hypothermia
 • Hypothyroidism
 • Raised intracranial pressure (Cushing response)
 • Infections (e.g. Lyme disease, diphtheria, typhoid fever)
 • Autoimmune (e.g. systemic lupus erythematosis)
 • Infiltrative disorders (e.g. sarcoidosis, amyloidosis)
 • Physiological causes (e.g. athletes, vagal stimuli)

Sinai Hospital of Baltimore IM Residency @SinaiBmoreIMRes

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