Tremor

Differential Diagnosis

• Enhanced physiologic tremor (e.g. anxiety)
• Essential tremor (familital)
• Parkinson's disease
• Hyperthyroidism
• Hepatic encephalopathy
• Cerebellar dysfunction
• Wilson's disease
• Hypoglycemia
• Toxicology:
  • Caffeine, theophylline
  • Sympathomimetics
  • ETOH withdrawal
  • Antipsychotics
  • Metoclopramide
  • Lithium
  • Levothyroxine
  • Tricyclic antidepressants
  • Valproic acid
  • Hydrogen sulfide
  • Serotonin syndrome
  • Salicylate toxicity
  • Bupropion
  • Heavy metal toxicity
• West Nile virus