Vomiting is a topic covered in the Select 5-Minute Pediatrics Topics.

To view the entire topic, please or purchase a subscription.

Medicine Central™ is a quick-consult mobile and web resource that includes diagnosis, treatment, medications, and follow-up information on over 700 diseases and disorders, providing fast answers—anytime, anywhere. Explore these free sample topics:

Medicine Central

-- The first section of this topic is shown below --

Basics

Description

  • Vomiting is the forceful expulsion of gastric contents through the mouth.
    • Vomiting is a prominent feature of many disorders of infancy and childhood.
    • It is often the only presenting symptom of many diseases.
  • Regurgitation is defined as small, effortless mouthfuls of food or stomach contents.
  • Retching is contraction of the abdominal musculature against a closed glottis, restricting expulsion of stomach contents (also referred to as “dry heaves”).

Pathophysiology

  • Vomiting can be:
    • A defense mechanism to expel ingested toxins
    • An abnormality of, or damage to, the postrema area of the brain (a.k.a. the chemoreceptor trigger zone or vomiting center), which is located at the base of the fourth ventricle
    • A result of intestinal obstruction or anatomic abnormalities
    • Due to chronic gastrointestinal mucosal disease
    • The result of a generalized metabolic disease
    • A result of increased intracranial pressure

-- To view the remaining sections of this topic, please or purchase a subscription --

Citation

* When formatting your citation, note that all book, journal, and database titles should be italicized* Article titles in AMA citation format should be in sentence-case
TY - ELEC T1 - Vomiting ID - 14006 Y1 - 2015 PB - Select 5-Minute Pediatrics Topics UR - https://im.unboundmedicine.com/medicine/view/Select-5-Minute-Pediatric-Consult/14006/all/Vomiting ER -