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Lung India Official publication of Indian Chest Society  
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Year : 1989  |  Volume : 7  |  Issue : 1  |  Page : 23-25

Correlation Of Ventilatory Tests And Arterial Blood Gases In Chronic Bronchitis

Correspondence Address:
R. U Rupwate

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Source of Support: None, Conflict of Interest: None

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In 123 stable patients with chronic bronchitis, three spirometric parameters FVC, FEV1 and RV/TLC% were correlated with arterial PO2 and PCO2. while PCO2 was minimally related to FVC (r = 0.23; p<0.01), PO2 was more related to FEV1 (r =0.43: p<0.001); both PO2 and PCO2 showed a good inter-relationship (r = 0.70; p<0.001). There was no significant relation of blood gases to RV/TLC or pH. FEV1 is a useful predictor of arterial oxygen tension.

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