| Investigations | Potential results | Clinical management plan: abnormal results |
|---|---|---|
| 1st Line | ||
| Dietary assessment | High intake of fizzy drinks | Reduce intake of fizzy drinks and discuss alternatives. |
| 2nd Line | ||
| Abdominal X-ray | Faecal loading | See ‘constipation’ (page 6). |
| OGD and D2 aspirate and/or glucose hydrogen (methane) breath test | SIBO | Treatment for SIBO (page 17). |
| If all tests are negative, but symptoms persist | Discuss ‘aerophagia’ with patient. | |
OGD, oesophago-gastroduodenoscopy; SIBO, small intestinal bacterial overgrowth.