ARTERIAL OXYGEN PRESSURE DURING PURE O-2 BREATHING
ARTERIAL OXYGEN PRESSURE DURING PURE O-2 BREATHING
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DOI：
10.1152/ajplegacy.1946.147.1.54
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发表时间：
1946-01-01
影响因子：
--
通讯作者：
CHIODI, H
中科院分区：
文献类型：
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作者：
FASCIOLO, JC;CHIODI, H
本文介绍了一种利用血浆中溶解氧测定动脉血氧分压的方法。设计了一种特殊的离心管，用于血液的离心而不损失任何气体。在8名正常受试者的动脉O2压力，呼吸纯O2，平均35.5毫米汞柱低于肺泡空气。结果与劳顿等人一致，表明通过眼压计技术测量的Hb容量过高。动脉血和肺泡空气之间的不完全平衡的解释进行了讨论。在正常受试者中，amt。如果有的话，在没有暴露于气相的情况下从右心流到左心的血液流量不能超过总肺血流量的2%。
A method for measuring the O2 pressure in arterial blood using the dissolved O2 in plasma was described. A special tube for centrifugation of the blood without any gas loss was devised. Arterial O2 pressure in 8 normal subjects, breathing pure O2, averaged 35.5 mm. Hg lower than in alveolar air. Results agree with Roughton et al. in showing that the Hb capacity measured by the tonometer technic is too high. Interpretation of the incomplete equilibrium between arterial blood and alveolar air is discussed. In the normal subject the amt. of blood, if any, passing from right to left heart without being exposed to the gas phase cannot exceed 2% of the total pulmonary blood flow.