Abstract: A method through which a more rapid detection of Helicobacter pylori in a gaseous sample is practicable, in which the 13C content is measured only until a minimum number of measurement values of the 13C content meets a standard deviation to be specified. The known 13C urea breath test has become established for clinical diagnosis for detecting Helicobacter pylori infections and known methods for detecting Helicobacter pylori provide that each method step corresponds to a fixed, specified time, which is disadvantageous, especially for performing a large number of such tests.