Nausea and vomiting
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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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