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Ranitidine, orally and intravenously, significantly increased gastric pH and reduced gastric volume. In the control group only one pH was greater than 2.5. Sodium citrate raised the pH above 2.5 in 6 out of 10 patients. Fasting patients in the first months of pregnancy may be at risk of developing Mendelson's syndrome. Ranitidine is very effective in increasing gastric pH and at the same time reducing gastric volume in such patients.<\/jats:p>","DOI":"10.1177\/0310057x8501300105","type":"journal-article","created":{"date-parts":[[2019,1,16]],"date-time":"2019-01-16T03:44:33Z","timestamp":1547610273000},"page":"29-32","source":"Crossref","is-referenced-by-count":4,"title":["Ranitidine Prophylaxis before Anaesthesia in Early Pregnancy"],"prefix":"10.1177","volume":"13","author":[{"given":"B. 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