FIELD: medicine, pediatrics. SUBSTANCE: one should carry out the testing of biological liquid, moreover, in blood serum one should detect the values for dopamine, serotonin, cortisol and at higher dopamine value being 3,6±1,2 mcg/l (the norm being 1,2±0,7 mcg/l), decreased serotonin value up to 8,7±2,1 mcg/l (the norm being 19±2,3 mcg/l), increased cortisol values up to 1000±80,6 nM/l (the norm being 700±50,6 nM/l) it is possible to predict unfavorable result of obstructive bronchitis as transition into bronchial asthma phase. EFFECT: higher accuracy of prediction. 2 ex, 1 tbl
