[Determination of bronchial reactivity by inhalation administration of cold air and pharmacologically active substances].

The indications for testing of nonspecific bronchial reactivity and the factors influencing the airway responsiveness are presented. In order to achieve a better quantification of airway responsiveness two new techniques are shortly reviewed: 1. Estimation of accumulative dose by using a combined method of bronchial provocation and simultaneous measurement of airway resistance and 2. Eucapnic cold airway hyperventilation, especially in suspected clinical cases of exercise-induced asthma.