UGI bleeding was defined as hematemesis, coffee-ground vomit or melena ... obtained through history and routine laboratory testing: Blood urea < 6.5 mmol/L, hemoglobin > 13 mg/dL for men and ...

Investigations: Laboratory investigations (full blood count [including reticulocytes ... with a 1-day history of nausea and 'coffee ground' vomiting. In the previous 18 months the patient ...