The uptake and elimination of krypton and other inert gases by the human body.
نویسندگان
چکیده
منابع مشابه
Cerebral Blood Flow Determined by Saturation and Desaturation with Krypton-85: an Evaluation of the Validity of the Inert Gas; Method of Kety and Schmidt.
• In the original inert gas method of Kety and Schmidt the saturation of the brain with the inert gas, N,,O, is followed for 10 minutes. In a group of subjects we have studied both the saturation and the desaturation of the brain with krypton as the inert gas. The results give an experimental demonstration of a relatively small systematic error inherent in the method apparently due to differenc...
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The mismatching of alveolar ventilation and perfusion (VA/Q) is the major determinant of impaired gas exchange. The gold standard for measuring VA/Q distributions is based on measurements of the elimination and retention of infused inert gases. Conventional multiple inert gas elimination technique (MIGET) uses gas chromatography (GC) to measure the inert gas partial pressures, which requires to...
متن کاملMeasurement of Muscle Blood Flow in the Human Forearm with Radioactive Krypton and Xenon.
IN 1949 Kety proposed that if the rate of removal from the site of injection of an intramuscularly injected radioactive isotope was limited principally by flow, then the clearance of the tracer from the injection site could be used to measure local blood flow.' In the past, sodium-24 or iodine-131 has been used for this purpose, but with considerable variability in the results obtained in seria...
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The parameters for a representative two-body Morse potential are determined for the solidified inert gases by fitting to O'K solid data. This is done using first the harmonic approximation and subsequently the first-order self-consistent harmonic approximation, which provides an upper limit to the anharmonic correction, to describe the solid at O'K. On comparing the two cases, the effect on the...
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To study the pathophysiological mechanism of progressive hypoxemia after smoke inhalation injury, alterations in ventilation-perfusion ratio (VA/Q) were studied in an ovine model by using the multiple inert gas elimination technique. Because ethane was detected in expired gas of some sheep, we replaced ethane with krypton, which was a unique application of the multiple inert gas elimination tec...
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ورودعنوان ژورنال:
- The Journal of clinical investigation
دوره 28 6 Pt 1 شماره
صفحات -
تاریخ انتشار 1949