Use to diagnose H. pylori infection in adults (>17 years of age). For children and adolescents, refer to Helicobacter pylori Breath Test, Pediatric (H PYLORI BP).
When used to monitor treatment, the test should be performed four weeks after cessation of definitive therapy. The patient should be informed that the Pranactin®-Citric drink that will be administered contains phenylalanine. Phenylketonurics restrict dietary phenylalanine.