TABLE 1.
Within two weeks |
High likelihood of cancer based on imaging or physical examination |
Severe and/or rapidly progressive dysphagia or odynophagia |
Clinical features suggestive of acute inflammatory bowel disease |
Within two months |
Bright red rectal bleeding |
Documented iron-deficiency anemia |
One or more positive fecal occult blood tests |
Chronic viral hepatitis |
Stable dysphagia (not severe) |
Poorly controlled reflux/dyspepsia |
Chronic constipation or chronic diarrhea |
New-onset change in bowel habits |
Chronic, unexplained abdominal pain |
Confirmation of a diagnosis of celiac disease (antibody test) |
Within six months |
Chronic gastroesophageal reflux disease for screening endoscopy |
Screening colonoscopy |
Persistent (>6 months) unexplained abnormal liver enzyme tests |
Data are adapted from reference 5