Cell Volume, Plasma Volume and Cell Percentage in Splanchnic Circulation of Splenectomized Dogs
نویسنده
چکیده
• With tlie development of techniques for measuring cell volume and plasma volume separately, it has been shown that the percentage of blood cells in the overall circulation, including small as well as large vessels, is lower than that in the blood of only the large vessels, i.e., the arteries or veins. The Fci-i is value (overall cell percentage/large vessel cell percentage) averages 0.91 in man and 0.88 in spleneetoinized dogs,'""' where the overall cell percentage is the cell volume as a percentage of the sum of cell volume and plasma volume, and the large vessel cell percentage is the arterial or venous hematocrit corrected for plasma trapping. Apparently, the blood in the minute vessels has a lower cell percentage than that in the arteries or veins. Such unequal distribution of cells between large and minute vessels has been demonstrated mainly for the entire circulation. In individual vascular beds, the determination of cell percentage under physiological conditions is rather difficult. Since the introduction of venous catheterization, a method has been devised" to measure the blood volume in the splanchnic region. In this regional dilution technique, the use of different test substances for red cells and for plasma permits measurement of the splanchnic cell volume and splanchnic plasma volume simultaneously in an intact organism. From these measurements, the splanchnic cell percentage
منابع مشابه
Cell volume, plasma volume and cell percentage in splanchnic circulation of splenectomized dogs.
• With tlie development of techniques for measuring cell volume and plasma volume separately, it has been shown that the percentage of blood cells in the overall circulation, including small as well as large vessels, is lower than that in the blood of only the large vessels, i.e., the arteries or veins. The Fci-i is value (overall cell percentage/large vessel cell percentage) averages 0.91 in m...
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