title: Smoking and gastric juice volume in outpatients.
abstract: The volumes and pH of gastric juice in 26 outpatients presenting for dental surgery were measured by simple aspiration through a nasogastric tube introduced after the induction of anaesthesia. The average volume in these patients who were non-smokers was 9 ml and in those patients who had smoked on the day of the operation was 19 ml. Four of the smokers had more than 25 ml of gastric juice with a pH of 2.0 or less. It is suggested that out-patients who smoke would benefit from prophylaxis such as oral antacids or metoclopramide before anaesthesia.
mesh_terms: D000328:Adult; D000766:Anesthesia, Dental; D000768:Anesthesia, General; D000863:Antacids / Q000627:therapeutic use; D005745:Gastric Acidity Determination; D005750:Gastric Juice / Q000378:metabolism*; D005764:Gastroesophageal Reflux / Q000517:prevention & control; D006801:Humans; D008787:Metoclopramide / Q000627:therapeutic use; D012907:Smoking / Q000503:physiopathology*; D014081:Tooth Extraction
chemical_list: D000863:Antacids; D008787:Metoclopramide