Vomit in infants Flashcards
What is gastroesophageal reflux
passage of gastric contents into the esophagus
what is regurgitation
spitting up is an effortless passage of gastric contents into the pharynx of mouth
vomiting
forceful expulsion of gastric contents
rumination
voluntary, habitual, and effortless regurgitation of recently ingested food
What is the vomiting center
Located in the reticular formation of the medulla
Chemoreceptor trigger zone
located in area postrema of the floor of the 4th ventricle
Nonreflux causes of vomiting
infection, neurologic, respiratory, anatomic/obstructive, cardiac, gastrointestinal, psychologic/behavioral
Signs of gastroenteritis
Hx of ill contacts, fever, abdominal pain, diarrhea, nausea/vomiting, acute onset
Why does gastroenteritis cause vomiting
activated by distention or irritation from various causes. Mediated by serotonin receptors. Treat with Ondansetron, a selective 5-HT3 receptor antagonist
Major cause of meningitis
Enterovirus