FIELD: medicine.
SUBSTANCE: method involves measuring forced expiration volume in the first second (FEV1) in l, determining change in forced expiration volume in the first second (ΔFEV1) in % from initial value after applying bronchial provoked pharmacological test with 0.1% acetylcholine chloride solution. Discriminant equation is to be solved D=-2.94*FEV1 + ΔFEV1. D being greater than - 19.34, stable clinical course of chronic obstructive pulmonary disease is to be predicted.
EFFECT: high reliability of prognosis.
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