TABLE 3-1 - Common Causes of Palpitations
| Cardiac | Tachyarrhythmias Bradyarrhythmias Valvular heart disease (e.g., mitral valve prolapse) Implanted pacemaker Cardiomyopathy (dilated or hypertrophic) |
| Metabolic disorders | Thyrotoxicosis Hypoglycemia Pheochromocytoma Electrolyte abnormalities (hyper- or hypokalemia, hypomagnesemia) |
| Medications/ Drugs | Sympathomimetic agents (e.g., theophylline, albuterol) Vasodilators Cocaine Amphetamines Caffeine Nicotine |
| Psychiatric | Panic attacks Anxiety disorder Depression Emotional stress |
| Other | Pregnancy Anemia Fever |