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Nausea and vomiting. intro. Primary GI: bowel obstruction, gastroenteritis CNS - increased intracranial pressure, tumor psychiatric conditions - bulimia nervosa, anxiety endocrine or metabolic abnormalities - diabetic ketoacidosis, hyponatremia iatrogenic causes - medications, toxins

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Presentation Transcript
intro
intro
  • Primary GI: bowel obstruction, gastroenteritis
  • CNS - increased intracranial pressure, tumor
  • psychiatric conditions - bulimia nervosa, anxiety
  • endocrine or metabolic abnormalities - diabetic ketoacidosis, hyponatremia
  • iatrogenic causes - medications, toxins
  • MCC is US – viral gastroenteritis
pathophys
pathophys
  • Coordinated in medulla oblongata
  • Chemoreceptive trigger zone in fourth ventricle
  • Also a vagal afferent pathway
  • Nausea, retching, emesis
clinical features
Clinical features
  • History
    • Timing
    • Severity
    • Prior surgeries
  • Physical exam
diagnostic tests
Diagnostic tests
  • Labs
    • Cbc
    • Cmp
    • Lipase
    • UA
    • Drug levels in overdose
  • Imaging
    • AXR
    • CT
    • US
references
references
  • Tintinalli, ch 75
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