The authors made 500 bronchoalveolar diagnostic lavages in children. From those they selected the results of 166 analyses, according to the clinical conditions they created a control group and group of sick children. The latter was further subdivided according to diagnoses into diagnostic groups: aspergillosis, bronchial asthma, bronchiectasis, relapsing bronchopneumonia, relapsing bronchitis, exogenous allergic alveolitis, diffuse parenchymatous pulmonary process (DPPP), sarcoidosis, irritating cough syndrome. In every examined child they evaluated the volume of lavage fluid, the total number of cells, the percentage ratio of alveolar macrophages, polymorphonuclear leucocytes, total lymphocytes, CD3, CD4 and CD8 lymphocytes, they calculated the immunoregulating index. The assessed values forming the control group were used as „reference“ values. After mathematical processing they elaborated a practical table which makes rapid orientation during evaluation of any lavage fluid possible.

        Key words: bronchoalveolar lavage, analysis, lavage fluid, alveolar macrophages (AM), polymorphonuclear leucocytes (PMNL), lymphocytes (Ly), CD3, CD4, CD8, immunoregulating index (IRI)