[Laboratory diagnostic monitoring of blood gas parameters in children during bronchologic studies]

Changes in PaO2 and parameters of acid-base-status during bronchological investigations were studied. 20 patients of both sexes with chronic nonspecific respiratory diseases have been investigated. The most important results were a respiratory acidosis after intubation and simultaneous hyperoxigenation during controlled (manual) ventilation. A respiratory acidosis with a small metabolic part was observed during extubation and change to normal respiration. In some cases acidosis was decomposated. These changes were found to be more extensive after bronchography than after bronchoscopy. Acidosis was normalized latest 60 minutes after extubation in all cases. The used method of bronchological examination has caused a favourable influence on the conditions of ventilation.