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Correlation Of Ventilatory Tests And Arterial Blood Gases In Chronic Bronchitis

R. U Rupwate, P. R Vaidya, Vp Kolhatkar, S R Kamat

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Abstract

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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What this paper is about

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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Available abstract

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.

Key concepts: Medicine, pCO2, Arterial oxygen tension, Arterial blood, Chronic bronchitis, Internal medicine, Cardiology, Blood gas analysis

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