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KMID : 0356919760090010017
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Korean Journal of Anesthesiology
1976 Volume.9 No. 1 p.17 ~ p.21
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Indirect Estimation of Arterial Po₂ and pH during General Anesthesia
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Robb, Ian S.
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Abstract
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Many attempts have been made to device a simple, yet accurate, laboratory method to evaluate the ventilation and acid-base disorders in patients.
This study compares the values for Pco₂, pH and Po₂of blood samples drawn simultaneously from a radial artery and a vein on the back of the other hand during general anesthesia in 6 cases.
The mean arterial and mean venous Pco₂and pH differences were 0.924 torr and 0.00013. These differences were too small to be of clinical importance and also varies slightly dependent on the main anesthestics used. Therefore we feel that the use of peripheral venous blood for pH and Pco₂determination during general anesthesia is a reliable indirect method of arterial Pco₂and pH.
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