Gastroenterology
Rome IV Chronic Nausea Vomiting Syndrome calculator
Enter the published formula inputs below to calculate and interpret this score.
Clinical inputs
Allowed range: 0–7 days/week
Allowed range: 0–40 episodes/week
Allowed range: 0–240 months
The source requires symptoms over the last 3 months and onset at least 6 months earlier.
Allowed range: 0–24 months
The source requires symptoms over the last 3 months and onset at least 6 months earlier.
Result
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Clinical inputs
- Days per week with bothersome nausea (days/week)Accepted range: 0 to 7
- Vomiting episodes per week (episodes/week)Accepted range: 0 to 40
- Self-induced vomiting, eating disorders, regurgitation, and rumination are excluded
- No organic, systemic, or metabolic cause on routine investigation
- Months since symptom onsetAccepted range: 0 to 240
- Months the criteria have been fulfilledAccepted range: 0 to 24
Primary source
Stanghellini V, Chan FKL, Hasler WL, et al. Gastroduodenal disorders. Gastroenterology. DOI: 10.1053/j.gastro.2016.02.011. PMID: 27147122. Chronic nausea vomiting syndrome requires bothersome nausea on at least 1 day per week and/or one or more vomiting episodes per week, exclusion of self-induced vomiting, eating disorders, regurgitation, and rumination, and no organic, systemic, or metabolic disease likely to explain the symptoms on routine investigation including upper endoscopy. Criteria are fulfilled for the last 3 months with onset at least 6 months earlier. (2016)
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