“…2,18,19 Patients experiencing PONV may also have inadequate absorption of per os medications (e.g., beta blockers, diuretics, analgesics), which, in turn may lead to complications such as increased rates of peri-operative dysrhythmias, fluid volume overload, and uncontrolled pain. 20 In a prospective study of gastrointestinal (GI) symptoms in cardiac surgery patients (N ¼ 122), Grap et al 10 found that nausea was the most distressing GI symptom reported during patients' hospital stay. Furthermore, PONV may impact on the patient's willingness and ability to participate effectively in their postoperative recovery (e.g., ambulating, deep breathing and coughing, dietary and fluid intake).…”