Rome IV Diagnostic Criteria for Chronic Nausea Vomiting Syndrome (CNVS)
Use in patients with symptoms suggestive of chronic nausea and vomiting syndrome (CNVS), such as bothersome nausea and vomiting for at least 6 months.
Patients with any of the following features must be evaluated clinically for other diagnoses even though CNVS may be present:
Signs or symptoms of GI bleeding.
Unexplained iron deficiency anemia.
Unintentional weight loss.
Palpable abdominal mass or lymphadenopathy on exam.
Family history of GI cancer and no recent abdominal imaging.
Acute change in GI symptoms.
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