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Definition
- Vomiting is the forceful emptying (throwing up) of a large portion of the stomach's contents through the mouth
- Nausea and abdominal discomfort usually precede each bout of vomiting
Causes - Main cause: stomach infection (gastritis) from a stomach virus (e.g., Rotavirus). The illness starts with vomiting but diarrhea usually follows within 12-24 hours.
- Food poisoning from toxins produced by bacteria growing in poorly refrigerated foods (e.g. Staphylococcus toxin in egg salad or Bacillus cereus toxin in rice dishes).
- Serious causes: If vomiting persists as an isolated symptom (without diarrhea) for more than 24 hours, more serious causes must be considered. Examples are appendicitis, kidney infection, meningitis, head injury, etc.
- Vomiting can also be triggered by hard coughing. This is common especially in children with reflux.
Severity of Vomiting The following is an arbitrary attempt to classify vomiting by risk for dehydration: - MILD: 1 - 2 times/day
- MODERATE: 3 - 7 times/day
- SEVERE: Vomits everything or nearly everything or 8 or more times/day
- Severity relates even more to the length of time that the particular severity level has persisted. At the beginning of a vomiting illness (especially following food poisoning), it's common for a child to vomit everything for 3 or 4 hours and then become stable with mild or moderate vomiting.
- The younger the child, the greater the risk for dehydration.
Return to School - Your child can return to child care or school after vomiting and fever are gone.
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