FIELD: medicine.
SUBSTANCE: method involves measuring real values of patient partial oxygen pressure in inhaled air portion and partial oxygen pressure in alveolar air portion. Due partial oxygen pressure values are calculated from mathematical formula including blood gas composition values. Ratios binding real and due partial oxygen pressure values are calculated. The ratio values being greater than 1 in a patient under examination, tracheal and bronchial obstruction is to be diagnosed.
EFFECT: high accuracy of diagnosis.
2 dwg
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