ESTIMATION OF CARBON MONOXIDE HEMOGLOBIN LEVEL BY EXPIRED AIR
نویسندگان
چکیده
منابع مشابه
A simple method of carbon dioxide estimation in expired air.
A SIMPLE method for the estimation of carbon dioxide in air or gas mixtures containing anaesthetic gases finds many applications in the investigation of anaesthetic problems and in the control of artificial respiration by mechanical respirators. This adaptation of already established techniques utilizes apparatus which may be found in most hospitals. It is rapid, and can be performed at the bed...
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To develop a procedure for maximizing the discrimination of smoking status, the authors analysed parallel samples of thiocyanate and cotinine in serum, and carbon monoxide (CO) in expired air in a cohort of 145 male subjects aged 45-65 years. The sensitivity and specificity were 93% and 82%, 97% and 83%, and 98% and 100% for thiocyanate, cotinine, and CO respectively. The results were not signi...
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Analysis of the carbon monoxide content of expired air is now a frequently used technique in population studies. Its close correlation with the blood concentration of carboxyhaemoglobin was first demonstrated by Jones, Ellicott, Cadigan, and Gaensler in 1958. Studies in the United Kingdom (Tyrer, 1964) and the United States (Ringold et al., 1962; Goldsmith, Schuette, and Novick, 1963) have show...
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The method here described is based on the capacity of hemoglobin to combine with the same maximum volume of CO as of 02. The blood sample, which may vary from 0.1 to 2.0 cc., is saturated with CO in the 50 cc. chamber of the manometric blood gas apparatus of Van Slyke and Neil1 (1, 2). Approximately 2 cc. of carbon monoxide are introduced with the blood, and the chamber is evacuated and shaken....
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Carbon monoxide binding by myoglobin and hemoglobin has been studied under conditions of constant illumination. For hemoglobin, the homotropic heme-heme interaction (cooperativity) and the heterotropic Bohr effect are invariant with light intensity over a 1000-fold change of c((1/2)). The dissociation constant, measured as c((1/2)), increases linearly with light intensity, indicating that photo...
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ژورنال
عنوان ژورنال: Sangyo Igaku
سال: 1970
ISSN: 0047-1879,1881-1302
DOI: 10.1539/joh1959.12.32