5 Questions
What is the vomiting response triggered by?
Peripheral and central stimuli
Which condition is NOT a central cause of vomiting?
Metabolic acidosis
What might be associated with vomiting in the history of presenting illness?
Fever and stiff neck
Which vital sign might indicate volume loss associated with vomiting?
Hypotension
What might be examined to assess upper respiratory tract infection related to vomiting?
Enlarged tonsils with exudates
Study Notes
Vomiting
- Vomiting response triggered bystimulation of the chemoreceptor trigger zone (CTZ) by chemical toxins or medications
- Inflammation of the stomach, food poisoning, infection, and motion sickness can also trigger vomiting
Causes of Vomiting
- Central causes of vomiting include meningitis, encephalitis, and increased intracranial pressure
- Gastroenteritis, food poisoning, and infectious diarrhea are NOT central causes of vomiting
History of Presenting Illness
- Nausea, abdominal pain, fever, and diarrhea might be associated with vomiting in the history of presenting illness
- Recent travel, antibiotic use, and eating contaminated food might also be relevant
Vital Signs
- Tachycardia (rapid heart rate) might indicate volume loss associated with vomiting
Upper Respiratory Tract Infection
- Nasopharyngeal aspirate or throat culture might be examined to assess upper respiratory tract infection related to vomiting
Test your knowledge of the organized, autonomic response of vomiting in pediatric medicine. Learn about the neural, hormonal, and muscular responses involved in the vomiting process.
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