[Acid-soluble fractions of the blood in patients with nonspecific diseases of the respiratory organs].

A method permitting the differentiation between the types of pulmonary inflammatory processes in patients with nonspecific diseases of the respiratory organs by the parameters of blood plasma acid-soluble fraction is suggested. If the inflammation is of an infectious origin (pneumonia, chronic bronchitis), the ratio of low-molecular to high-molecular fractions of the blood plasma acid-soluble fraction is 4.2 +/- 1.8. In allergic inflammations (bronchial asthma) this ratio is 9.0 +/- 5.8. The results of this test were in line with clinical laboratory and x-ray findings in 86.7% of the examinees. In complex with other methods of examination, the described technique may be used for the differential diagnosis of allergic and infectious inflammations in patients with respiratory diseases.