method of fractional measurement of gastric activity: a fine tube with fenestrated metal tip is passed into the stomach after a test meal, and small quantities (6-8 mL) of the stomach contents are removed at 15-minute intervals and examined.
Rehfuss testAn obsolete test for gastric acid production following a test meal, which has been superseded by gastrin or insulin injection followed by sampling of gastric juices by an nasogastric tube.
Rehfuss,Martin E., U.S. physician, 1887-1964.
Rehfuss method - fractional method to test gastric activity.
Rehfuss stomach tube - a tube with a calibrated syringe.