THE ALVEOLAR-ARTERIAL OXYGEN PRESSURE GRADIENT IN MITRAL STENOSIS 1
نویسندگان
چکیده
منابع مشابه
The normal alveolar-arterial oxygen-tension gradient in man.
2. The gradient increased with age and with inspired O2 concentration up to 60%. Above 60%, during normal breathing, there was no significant change in gradient. 3. Breathing 100% 0, in deep breaths decreased the gradient in all age-groups, significantly so in subjects of 50 years and younger. The remaining gradient was due to anatomical venous shunt. 4. When this anatomical shunt was allowed f...
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in accordance with the article of Fletcher et a13 who systematically tested the accuracy of this catheter system in humans. He also found a consistent underestimation of the fiberoptic pulmonary artery catheter SvO2 values below 50% compared with direct spectophotometry and proposed two equations to adjust the catheter measurements: (1) Catheter=-11.68+1.1892XCOOX (2) Catheter=COOX-210.997 exp ...
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ژورنال
عنوان ژورنال: Journal of Clinical Investigation
سال: 1952
ISSN: 0021-9738
DOI: 10.1172/jci102670