Abstract
The present study describes a technique for determining the intragastric pH using the Heidelberg capsule with particular reference to the detection of achlorhydria. Betazole hydrochloride was used as the gastric secretory stimulus. A good correlation exists between the pH recorded by the technique described and that found during an A. H. T. in patients suffering from a variety of anaemias. In patients with pernicious anaemia, achlorhydria was indicated by a pH equal to or greater than 4, using the method described.
Key-words: