In suspected cases of gastric carcinoma. In suspected cases of Zollinger Ellison's syndrome. To determine the completeness of vagotomy by Hollander's insulin test. Aneurysm of aorta. Recent gastric haemorrhage.
Procedure Starve overnight.
Ryle's tube is passed into the stomach and the stomach is emptied. The volume of the stomach aspirate is noted and tested for muscus, bile, blood, starch, etc. The tube is taped onto the patient's face and the stomach aspirated every 15 minutes for 1 hour and titrated for acid. Every 15 minutes for the next 1 hour gastric samples are collected and acid output is noted. Interpretation Volume - Fasting volume is normally 50ml.